【单选题】The picnics, speeches, and parades of today's Labor Day were all part of the first celebration, held in New York City in 1882. Its promoter was an Irish-American labor leader named Peter J. MeGuire. A...
A.
a moderate labor leader
B.
an extreme-anarchist in the labor movement
C.
a devoted socialist fighting against exploitation of man by man
D.
a firm anti-capitalist demanding the elimination of wage slavery