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) increasing integration of the world economy
E) antidumping policies limiting the ability of a firm to use aggressive pricing