I just wanted to double check if my answers are right or if it make sense :)

Question 1: (1 point) Consider a world with only two countries, A and B, and only two goods X and Y. Then, if country A has a comparative advantage in good X, country B must have a comparative advantage in good Y. (a) True (b) False Question 2: (1 point) Purchases by U.S. investors of shares in Canadian companies constitute one source of supply of U.S. dollars on the U.S. foreign exchange markets (a) True (b) False Question 3: (1 point) Output per worker Clothing Food in Canada 10 8 in Britain 2 In the above Table, Britain has a comparative advantage in clothing. (a) True (b) False Question 4: (1 point) The flatter is the investment curve, the more effective is monetary policy as a way of controlling aggregate demand. (a) True (b) False