試題詳解

7. If a restaurant runs a special and sells a lobster dinner for S5.00, Amy buys one lobster dinner a week. If lobster dinners are not on special and the price is S10.00, Amy buys zero lobster dinners per week. Which of the following is TRUE?
(A) Amy's dema and for lobster is inelastic.
(B) The value of Amy's utility from a lobster dinner is at least $5.00 and less than $10.00.
(C) Amy's utility from a lobster dinner is less than $5.00.
(D) Amy's utility from a lobster dinner is greater than$10.00.