In a perfectly competitive​ market, sellers​ _________ and buyers​ _________.

A. are able to charge more than the market​ price; cannot pay less than the market price.
B. are able to charge more than the market​ price; are able to pay less than the market price.
C. cannot charge more than the market​ price; are able to pay less than the market price.
D. cannot charge more than the market​ price; cannot pay less than the market price.