please answer all three questjons

Question 24 1 pts Which of the following statements holds true for the barter system? O It refers to the exchange of goods and services with payments made in gold. o It refers to the direct exchange of goods with countries accorded the most favored nation status. It refers to the direct exchange of goods and services with nations that have been accorded AAA in the credit rating system. It refers to the direct exchange of goods without traders having to pay customs duties. O It refers to the direct exchange of one good for another, with no money involved. Question 29 1 pts Which of the following is not a way in which companies can differentiate their products? emphasizing products' unique features O making constant product upgrades finding low-cost sources or materials O bringing frequent and useful innovations O providing impeccable customer service Next Question 31 1 pts Efficiency-driven economies are: O highly sensitive to world economic cycles, commodity price trends, and exchange rate fluctuations. O found in countries that have well-established higher education, well-organized goods and labor markets, and the capacity to harness existing technologies. found in countries that have mature financial markets, business laws, large domestic size, and flourishing innovation. O associated with pillar such as institutions, infrastructure, macroeconomic stability, and health and primary education. O not sensitive to world economic cycles and exchange rate fluctuations