Which Statement Best Describes the House Un-American Affairs Committee Investigation

Which statement best describes the House Un-American Affairs Committee investigation of Hollywood?

A) The Screen Actors Guild president testified that Hollywood unions were full of Reds.
B) The committee sought to use the movies to mobilize public opinion in support of capitalism.
C) Despite the committee's pressure, Hollywood made dozens of movies that were highly critical of American business during the late 1940s and early 1950s.
D) The Motion Picture Association told Congress to mind its own business.