Regarding Foreign Direct Investment and Trade

Regarding foreign direct investment and trade:

A) Historically,foreign trade has followed foreign direct investment.
B) Foreign trade is typically more costly and more risky than making a direct investment into foreign markets.
C) Typically,a firm would hire sales representatives to live in overseas markets as a first step in developing international trade.
D) Fewer government barriers to trade,increased competition from globalizing firms,and new production and communications technology are causing many international firms to disperse the activities of their production systems to locations close to available resources.
E) Historically,foreign trade has followed portfolio investment.