Question

what happened to those who would not work with the congressional committees or would not sign loyalty oaths put out by the studios? they were forced to sign the oath they were exempt from having to appear in from of the committees or sign the oaths they went to jail they were blacklisted and never worked again

Explanation:

During the Hollywood blacklist era in the United States, those who refused to cooperate with congressional committees (such as the House Un - American Activities Committee) or sign loyalty oaths were often blacklisted by the studios. This meant they were effectively barred from working in the industry.

Answer:

They were blacklisted and never worked again