Janie must choose to either mow the lawn or wash clothes. If she mows the lawn, she will earn $30, and if she washes clothes, she will earn $45. She dislikes both tasks equally and they both take the same amount of time. Janie will therefore choose to _ because it generates a _ economic surplus.
A.mow the lawn; bigger
B.mow the law; smaller
C.wash clothes; smaller
D.wash clothes; bigger
正确答案:wash clothes; bigger