"In 1947, the committee held nine days of hearings into alleged communist propaganda and influence in the Hollywood motion picture industry. After conviction on contempt of Congress charges for refusal to answer some questions posed by committee members, the " Hollywood Ten " were blacklisted by the industry." Which committee is being described above?

a
Senate Un-American Activities Committee
b
House Un-American Activities Committee
c
Congressional Committee on Intelligence
d
Hartford Unidentified Aliens Committee