Answer: A. choosing an appropriate mode for entering a particular foreign country
Step-by-step explanation:
The options to the question are:
A. choosing an appropriate mode for entering a particular foreign country
B. developing a business strategy
C. marketing a product or service
D. adhering to labor and environmental standards
E. maintaining healthy relations with the U.S. government.
From the question, we are told that Sun-Jun is the executive general manager of a U.S.-based multinational corporation while Marisol is a manager in a similar position but works for an American company that operates only in the U.S. and does not engage in international business.
Since Marisol's company does not engage in international business, while Sun-Jun works in a multinational corporation, this means that the business function will be most typically exclusive to Sun-Jun will be choosing an appropriate mode for entering a particular foreign country.