Who Were the Sans-Culottes

Who were the sans-culottes?

A) Representatives of the nobility named for the style of knee breeches they wore to distinguish their social class
B) Members of the urban working classes who wore long trousers rather than the knee breeches of the upper classes
C) Members of a middle-class political club who organized meetings in support of the National Assembly
D) Counterrevolutionary militias that organized to support the French king with backing from the British government