Holding All Else Constant,an Increase in the Market Demand for a Product

Multiple Choice

Holding all else constant,an increase in the market demand for a product in a competitive market would cause:

A) the average total cost (ATC) curve of the firms to increase.
B) a decrease in the price a firm could charge for the product.
C) the marginal revenue (MR) curve of the firms to shift upward/rightward.
D) the marginal cost (MC) curve of the firms to increase.
E) a decrease in profits for the firm.