Most Members of the Black Middle Class in Harlem

Most members of the black middle class in Harlem:

A) Are usually isolated within their own class group except for occasional parties.
B) Are rarely isolated within their own class group-most situations invite mixtures of people.
C) Spend their work time with members of the black underclass, but their free time with other members of the middle class.
D) Maintain a complicated set of connections to other class groups.