What was the purpose of the House Un-American Activities Committee (HUAC)?

A. to help people with mental illnesses get treatment
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B. to improve patriotism and enthusiasm in the United States
C. to stop people from collaborating with the Vietnamese or Koreans
D. to identify suspected Communists in business, academia, and the media
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Human rights groups in the 20th century worked to: o a. european imperial powers maintain control over their colonies. o b. convince citizens in impoverished countries to embrace nationalism. o o o o c. ensure that people around the world were protected from brutal treatment. o d. weaken the influence of international organizations like the united nations. sub