Question

Which sentences have incorrect parallel structure? The House Un-American Activities Committee (HUAC) was an investigative committee of the U.S. Congress. Created in 1938, the committee investigated questionable activity and if people were disloyal to the United States. During the Cold War, the HUAC became a permanent committee. Its goal was to investigate suspected communists within the U.S. In 1947, the committee held nine days of hearings to investigate communist influence in the Hollywood film industry. The committee believed that some American artists were communists. The list of suspected