Established by Congress in $1938,$ the House Un$-$American Activities Committee $($HUAC$)$ kept up the drumbeat about the risk of communist subversives infiltrating the federal government. In May $1947,$ HUAC expanded its scope, launching an investigation into the alleged threat of communist infiltration into:

Group of answer choices

the Hollywood industry.

corporate America.

the military.

organized crime in major American cities.