The crowds of people who were climbing up the hill suddenly caught sight of the peach,a terrible monster,plunging down upon them.
Wanda wondered which we wouldwhat
Answer: The mistake could not have been made by them.
subject comes first and pronoun goes last
any more help just ask :)
The correct option is D.
Marginal cost refers to the amount of money it cost a company to produce one more of a particular product while the marginal benefit refers to the benefit that is obtained as a result of producing that one extra product. Profit is maximized when the marginal cost equals the marginal benefits.