The "Mass Line" in Communist China Was

The "mass line" in Communist China was

A) an attempt to merge the Chinese Communist Party with Communist parties in other Southeast Asian countries.
B) the organization of peasants, workers, women, and other groups to serve as a link between the people and the Communist Party.
C) another term to describe the agricultural communes of the Great Leap Forward.
D) what the Red Guards attempted to enforce during the Great Proletarian Cultural Revolution.
E) the Chinese Communist Party officials "massed" in solidarity against the claims of Soviet Communists to be the leaders of the Comintern.