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Question 4 (20 points) Write whether each statement is True, False of Uncertain. Fully explain yOur answer. (1) (5 points) Suppose that a consumer nds two goods to be perfectly substitutable. Then the optimal bundle for this consumer will always be a corner solution. (2) (5 points) A consumer has selected an optimal bundle of two goods that includes some of each good. The price of one good increases. Then her utility is lower after the price increase compared to before it. (3) (5 points) Suppose your income can be either high or low. The expected utility from your incomes is identical with the utility from the expected incomes. (4) (5 points) Price elasticity of demand is bigger in short-tun than in long-run