![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
For international businesses, regional economic integration such as the EU
A.
Raises the costs of doing business in the region
B.
Eliminates differences in culture allowing companies to standardize marketing activities
C.
Opens markets that had formerly been protected
D.
Standardizes competitive practices enabling companies to realize substantial cost economies