Please help me solve these two questions, I have done it, but I am not sure about it.

QUESTION 1. This question contains 5 subparts, please complete all. (Total 10 marks) I.The IPCs can be linked together to provide a neat benchmark for equilibrium exchange rate determination. Before this benchmark equation may be derived, we have to assume: (Select all that apply) (2 marks) Select one or more: a. Nominal rates of return on the money market should be proportional to expected inflation rate in the country O b. Market participants form beliefs about exchange rates based on their different sources of private information c. The spot exchange rate is an unbiased estimator of future spot exchange rate d. The forward exchange rate will be the future spot exchange rate Question 4 QUESTION 1. (Cont'd) Not yet answered Marked out of 2.00 IV. Transactions recorded on a country's BOP reflect its economic activities with the rest of the world. Of the three major BOP accounts, the current account usually receives special attention. Based on our lecture discussions, which of the following statements is (are) correct? (Select all that apply) (2 marks) P Flag question Select one or more: O a. Higher commodity prices, especially that of iron ores, is the main reason that turned Australia's persistent current account deficit into surplus since 2019, and further pushed it to a record high of A$18.3 billion recently as reported by the ABS b. The effective exchange rate for Germany is undervalued relative to other 18 eurozone countries, thanks to Germany's higher productivity, high national savings rate, as well as tight fiscal policy. This has led to Germany's persistent current account surplus since 2004. The dominant position of the USD and U.S. financial markets since WW II has driven the U.S. capital account into surplus, both the largest in magnitude and the longest in duration compared to the rest of the globe. This, on the other hand, means the U.S. current account has been in deficit for decades d. Appreciation of the CNY within a band against major currencies, traditionally high national savings rate, and tightening of China's capital control policies are factors that contribute to keeping China's current account in surplus QUESTION 1. This question contains 5 subparts, please complete all. (Total 10 marks) I.The IPCs can be linked together to provide a neat benchmark for equilibrium exchange rate determination. Before this benchmark equation may be derived, we have to assume: (Select all that apply) (2 marks) Select one or more: a. Nominal rates of return on the money market should be proportional to expected inflation rate in the country O b. Market participants form beliefs about exchange rates based on their different sources of private information c. The spot exchange rate is an unbiased estimator of future spot exchange rate d. The forward exchange rate will be the future spot exchange rate Question 4 QUESTION 1. (Cont'd) Not yet answered Marked out of 2.00 IV. Transactions recorded on a country's BOP reflect its economic activities with the rest of the world. Of the three major BOP accounts, the current account usually receives special attention. Based on our lecture discussions, which of the following statements is (are) correct? (Select all that apply) (2 marks) P Flag question Select one or more: O a. Higher commodity prices, especially that of iron ores, is the main reason that turned Australia's persistent current account deficit into surplus since 2019, and further pushed it to a record high of A$18.3 billion recently as reported by the ABS b. The effective exchange rate for Germany is undervalued relative to other 18 eurozone countries, thanks to Germany's higher productivity, high national savings rate, as well as tight fiscal policy. This has led to Germany's persistent current account surplus since 2004. The dominant position of the USD and U.S. financial markets since WW II has driven the U.S. capital account into surplus, both the largest in magnitude and the longest in duration compared to the rest of the globe. This, on the other hand, means the U.S. current account has been in deficit for decades d. Appreciation of the CNY within a band against major currencies, traditionally high national savings rate, and tightening of China's capital control policies are factors that contribute to keeping China's current account in surplus