The Need to Integrate R&D and Marketing to Adequately Commercialize

The need to integrate R&D and marketing to adequately commercialize new technologies poses special problems in the international business because

A) firms typically have all of their R&D centers in the home country.
B) commercialization means that the same version of a new product needs to be produced for all countries.
C) firms typically do not have their R&D centers in the same country as their production facilities.
D) commercialization may require different versions of a new product to be produced for various countries.