Question

which best describes how civil rights workers were treated during the freedom summer campaign?
many workers were ignored.
some workers were arrested or killed.
some workers were treated well.
a few workers were warned to leave.

Explanation:

Freedom Summer (1964) was a civil rights campaign focused on Black voter registration in Mississippi. Civil rights workers, including volunteers, faced violent, severe repression: multiple were killed (such as Chaney, Goodman, and Schwerner), hundreds were arrested, and many endured attacks and intimidation. This makes "Some workers were arrested or killed" the most accurate description of their treatment.

Answer:

Some workers were arrested or killed.