The All-China Federation of Trade Unions traditional responsibilities focused on:

A) collective bargaining over wages, hours, and working conditions
B) promoting common, national good and social harmony through enterprise unions
C) represent workers' interests in opposition to employers' interests
D) protest state-sponsored housing and other social benefits programs

The All-China Federation of Trade Unions is a national labor union that is closely tied to the ruling Chinese Communist Party. Its main focus is on promoting social harmony and advocating for common, national good through enterprise unions. While it does represent workers' interests, its emphasis is on cooperation with employers rather than opposition. It does not typically protest state-sponsored housing and social benefits programs.