Why Do USCompanies Moving into the International Market Need to Be Sensitive

Why do U.S.companies moving into the international market need to be sensitive to the need for local country or regional responsiveness?

A) There is increasing rejection of American culture across much of the world.
B) The international consumer has become more sophisticated because of the Internet.
C) Consumer needs and desires, industry conditions, political and legal structures, and social norms vary by country.
D) International expansion brings an increasing loss of economies of scale.