Answer:
A. can choose the quantity of butter that it produces but not the price at which it sells its butter.
Step-by-step explanation:
Taking into consideration the characteristic of the market explained in the exercise we would say that it is a Competitive Market.
One of the characteristics of a Perfect Competitive Market is that the price of the products is determined by the market, which means that no single seller can't change or influence the price on its own.
Hope it helps. Good luck.