What Was the Purpose of the 1964 Mississippi Freedom Summer

What was the purpose of the 1964 Mississippi Freedom Summer Project?

A) protest the escalation of the Vietnam War.
B) help and encourage African-Americans to become registered voters.
C) force the Interstate Commerce Commission to declare segregated transportation facilities unconstitutional.
D) persuade the state legislature to ratify the Equal Rights Amendment.
E) convince southern blacks to join the military.