Activists in the counterculture movement were successful at doing which of the following? weakening the republican party turning public opinion against the vietnam war pressuring congress to pass the civil rights act bringing an end to mccarthy's anti-communist crusade

Activists in the counterculture movement were generally successful at "turning public opinion against the Vietnam War," although there were many different factors affecting public opinion. 

The correct answers are the following

turning public opinion against the Vietnam War pressuring Congress to pass the Civil Rights Act

A counterculture is a subculture which typically rejects and contradicts the values which shape the mainstream society and such movements usally reflect the aspirations of speficic generation and human group during a certain era.

The counterculture that proliferated during the 1960s in the US, usually associated with the hippy subculture, rejected the traditional way of life and the establishment. Three factors that influenced this movement:

The US society wanted the end of the participation in the Vietnam war and for equality of rights for all human beings. This is why the movement praised for peace and performed many demonstrations claiming for the end of the war conflicts, for saving human lives and for civil rights for everybody.

The american anti-slavery society (aass) (1833–1870) was an abolitionist society founded by william lloyd garrison, and arthur tappan. frederick douglass, an escaped slave, was a key leader of this society who often spoke at its meetings.

The answer is a. mantle