The Essential Idea of the "Melting Pot" Was

The essential idea of the "melting pot" was:

A) all ethnic groups would eventually adopt the culture of the dominant Anglo groups.
B) each immigrant group would hold on to its basic culture, creating a more diverse American society.
C) the cultures of different ethnic groups would eventually fuse into a single American culture.
D) different ethnic groups would blend into a common American culture, but would remain structurally separated.