Which statement about photography during the Civil War is true? A. It was quickly processed and published.
B. It refrained from showing disturbing images.
C. It was extensively used by spies from both sides.
D. It showed people what the battlefields looked like.

His is the name of the group in the house of representatives that, in 1947, began hearings to expose communist infiltration in american life. unfortunately, a good deal of the evidence they used was based on hearsay and conjecture, meaning innocent people were harmed by their findings.