How did the actions of the U.S. military after the My Lai massacre affect the American public?
A) The cover-up after the event and the trial did not affect American perception of the war.
B) The cover-up after the event and the trial were not reported in the mainstream news.
C) The cover-up after the event and the trial helped build support for the war.
D) The cover-up after the event and the trial helped build antiwar sentiment.