Question

the main goal of the freedom summer campaign was
integrating public schools.
integrating lunch counters.
registering african americans to vote.
boycotting segregated public buses.

Explanation:

Freedom Summer (1964) was a civil rights initiative focused on addressing systemic barriers that prevented African Americans in Mississippi from exercising their voting rights, which included voter registration drives and related advocacy. The other options relate to separate civil rights efforts: school integration was tied to events like Brown v. Board, lunch counter integration to sit-in movements, and bus boycotts to actions like the Montgomery Bus Boycott.

Answer:

registering African Americans to vote.