Which of the Following Is True Regarding Multinational Markets

Which of the following is true regarding multinational markets?

A) Large markets do not lead to marketing efficiencies.
B) Large markets cannot achieve economies of scale.
C) Large markets are particularly important to businesses not accustomed to mass production.
D) Economic integration creates smaller markets.
E) Despite the problems that are sure to occur because of integration, the economic benefits from free trade can be enormous.