Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

A company doing business in a monopolistically competitive market will most likely maximize profits when its output quantity is set such that:
Option A:average cost is minimized.
Option B:marginal revenue equals average cost.
Option C:marginal revenue equals marginal cost.

Answer: C