Which of the Following Is NOT a Constraint on a Firm's

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