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.