For a firm in a perfectly competitive market, if it produces where marginal cost exceeds marginal revenue:

A、itshouldcutbackproductiontoincreaseprofits
B、itshouldincreaseproductiontoincreaseprofits
C、itisproducingaprofit-maximizingquantity
D、Thefirmisnotmaximizingprofits,butitisimpossibletotellhowquantityshouldbechangedwithoutmoreinformation