When the HUAC began their investigation of the movie industry, they looked

with suspicion at writers, actors, and directors who (1 point)
CHOOSE ONLY ONE OF THE FOLLOWING
A) attended Communist party meetings in the 1930s
B) all of the above
C) invoked the Fifth Amendment when testifying before the HUAC
D) wrote or appeared in WWII-era films that were sympathetic to the Soviet Union.

A) attended Communist party meetings in the 1930s