What was mercantilism? (Multiple Choice)

What was mercantilism?
 
  A) An economic theory carefully elaborated by Adam Smith in The Wealth of Nations
  B) The theory that a nation's power was measured in its wealth; to maximize wealth, a country would need to export more than it imported
  C) A colonial American policy of trading primarily with England in order to strengthen political and economic ties
  D) A theory of business organization in which merchants formed joint stock companies to pool their capital
  E) The belief that the most effective way to escape from the Long Depression was to increase imports of agricultural goods