According to the Cost-Benefit Principle, you should go see the latest Star Wars movie with your friends this week-end if:

A.you can afford to go to the movies.

B.the extra benefits of seeing the movie are greater than the extra costs of seeing the movie.

C.you really like Star Wars.

D.the average benefit you get from going to the movies is greater than the average cost of a ticket.

正确答案：the extra benefits of seeing the movie are greater than the extra costs of seeing the movie.