2. (5 points) In the following figure, a consumer is initially in equilibrium at point C. The consumer's income is $600, and the budget line through point C is given by $600=$100X+$200Y. When the consumer is given a $100 gift certificate that is good only at store X, she moves to a new equilibrium at point D. a. Determine the prices of goods X and Y. b. How many units of product Y could be purchased at point A? c. How many units of product X could be purchased at point E? d. How many units of product X could be purchased at point B ? e. Is product X a normal or an inferior good