The Open Door Policy

The Open Door policy:

A) allowed a certain number of Japanese immigrants to the United States each year in return for special trading rights with Japan
B) allowed Cubans to enter the United States and Americans to enter Cuba freely
C) proposed that foreign powers keep China trade open to all nations on an equal basis
D) pledged economic aid to struggling Latin American republics
E) closed Chinese immigration except for spouses and children of men already in America