For a Firm in Monopolistic Competition to Undertake Product Development,the

For a firm in monopolistic competition to undertake product development,the marginal cost of the development must be ________ the marginal benefit of the development to consumers.

A) greater than
B) less than
C) not comparable to
D) equal to or less than
E) None of the above because a monopolistically competitive firm undertakes product development if the marginal cost of the development is less than or equal to the marginal revenue to the firm from the development.