若问一道level 1经济题 likely, about, product, average

charlesmc

If both average product(AP) and marginal product(MP) are equal to 4 when 10 workers are employed, what can we most likely conclude about AP and MP when 15 workers are employed?

A AP=MP=5

B AP=5and MP=6

C AP=4 and MP=6

D AP=7 and MP=5

我觉得AP肯定大于MP但是都应该小于4啊？