What Is Behind the Trend Toward Expansion into Global Markets

What is behind the trend toward expansion into global markets?

A) Foreign countries can provide a business with new markets in which there are millions or billions of new customers.
B) They can operate with lower labour costs.
C) Global activities are simplified and encouraged by trade agreements among nations.
D) Foreign countries can provide a business with new markets in which there are millions or billions of new customers,"they can operate with lower labour costs," and "global activities are simplified and encouraged by trade agreements among nations."
E) Foreign countries can provide a business with new markets in which there are millions or billions of new customers and "global activities are simplified and encouraged by trade agreements among nations" only.