Ramon Lives in Mexico City and Is a Mexican Citizen

Ramon lives in Mexico City and is a Mexican citizen. He has several friends in the United States who own shares in an S corporation. Ramon would like to invest in this company. Ramon:

A) can invest in this company, but must pay both U.S. and Mexican taxes.
B) cannot become a shareholder since he is not a citizen or permanent resident of the U.S.
C) can become a shareholder but cannot become a manager, and his income must be paid in pesos.
D) needs approval from the Mexican government before he can invest.