What Was Identified in the Text as Being a Driver

What was identified in the text as being a driver of the rapid growth of international business over the past two decades?

A) High labor costs in developing economies
B) The opening up of large economies that had previously been closed off to outside investors
C) Lower corporate tax rates
D) Increase in the value of the dollar relative to other currencies
E) Decrease in the value of the dollar relative to other currencies