Which of the following is NOT a constraint on a firm's ability to disperse its productive activities to foreign countries?

A. Tariff barriers raising the costs of exporting products to a country

B. Quotas restricting the quantity of a good that can be imported into a country

C. Local content requirements demanding a specific fraction of domestic production

D. The increasing integration of the world economy

E. Antidumping policies limiting the ability of a firm to use aggressive pricing

D