A Particularly Suspicious Aspect of McCarthy's Accusations Regarding the State

A particularly suspicious aspect of McCarthy's accusations regarding the State Department:

A) was that he never accused Democrats of being Communist subversives.
B) was that he constantly changed the number of people he was accusing.
C) was his insistence that President Eisenhower knew of subversive acts.
D) was his reluctance to talk about the accusations during televised committee meetings.