In Both Price-Taker and Competitive Price-Searcher Markets, the Long-Run Market

In both price-taker and competitive price-searcher markets, the long-run market price of a good will be equal to the

A) average total cost of producing the good.
B) average variable cost of producing the good.
C) average fixed cost of producing the good plus a normal return on that cost.
D) marginal revenue derived from the sale of an additional unit of the good.