In the Model of Monopolistic Competition,trade Costs Between Countries Cause

In the model of monopolistic competition,trade costs between countries cause

A) some firms that can earn a profit on domestic sales to refrain from exporting their goods.
B) prices of goods sold domestically to exceed the prices of exported goods.
C) marginal costs of goods sold domestically to exceed the marginal costs of exported goods.
D) all firms that can earn a profit on domestic sales to export their goods at higher prices.
E) countries to negotiate the elimination of trade costs by mutual subsidization of trade.