Between 1946 and 1954, the house committee
on un-american activities and senator joseph
mccarthy attracted public attention by
investigating
(1) allegations of communist influences in
government
(2) civil rights violations against african americans
(3) corruption by companies in the defense
industry
(4) war crimes of german and japanese officials

Between 1946 and 1954, the House Committee of Un-American Activities and Senator Joseph McCarthy attracted public attention by investigating 1. allegations of communist influences in government. HUAC, as the committee was called, investigate claims of communist ties not only in the government, but in other industries as well such as the filmmaking industry in Hollywood.

The answer would be option a , b, and c.