问题如下：
Which of the following statements is most accurately?
选项：
A.The price of a product in monopolistic industry is determined by the demand curve.
B.The price of a product in monopolistic industry is determined by the marginal cost curve.
C.The price of a product in monopolistic industry is determined by the average total cost curve.
解释：
In the long run and short run, the output of the monopolistic industry is optimal where MR=MC, and price that consumers are willing to pay is determined from the demand curve
考点：垄断市场
解析：垄断市场上，消费者愿意支付的价格，是由需求曲线决定的，其他两个选项都不对。
为什么不选B，MR=MC，由MC决定？
任何市场P都有demand决定？
