Jill Smith, a careful utility maximizer, consumes only two goods, peanut butter and ice cream.She had just achieved the utility-maximizing solution in her consumption of the two goods when the price of peanut butter increases.As she adjusts to this event:
A.the marginal utility of peanut butter and of ice cream will rise.
B.the marginal utility of peanut butter and of ice cream will fall.
C.the marginal utility of peanut butter will fall, and the marginal utility of ice cream will rise.
D.the marginal utility of peanut butter will rise, and the marginal utility of ice cream will fall.

Question

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The Answer of Jill Smith, a careful utility maximizer, consumes only two goods, peanut butter and ice cream.She had just achieved the utility-maximizing solution in her consumption of the two goods when the price of peanut butter increases.As she adjusts to this event:
A.the marginal utility of peanut butter and of ice cream will rise.
B.the marginal utility of peanut butter and of ice cream will fall.
C.the marginal utility of peanut butter will fall, and the marginal utility of ice cream will rise.
D.the marginal utility of peanut butter will rise, and the marginal utility of ice cream will fall.

Jill Smith, a Careful Utility Maximizer, Consumes Only Two Goods