Please help me answer the question.

1) Indicate if the following statements are True or False. Then, EXPLAIN why you think so. (2 marks each) a) The Ricardian model posits that New Zealand will export dairy because it is relatively abundant in milk. b) The trade literature can offer no explanation for the puzzle brought up by empirical evidence from developing countries, which suggests that inequality between skilled and unskilled workers is rising with trade liberalization. c) The Olley-Pakes method of estimating total factor productivity employed by Pavcnik (2002) accounts ONLY for the fact that inputs are endogenous to the rm's productivity