Answer:
The correct answer is A. Matthew Brady was the first documentary photographer who captured the Civil War in pictures.
Step-by-step explanation:
Brady endeavored to document the Civil War with a large photographic team, so he invested a large sum of money, among other expenses, to hire more than 20 photographers who traveled the entire country: Alexander Gardner, James Gardner, Timothy H. O'Sullivan, William Pywell, George N. Barnard and eighteen other men. Generally, Brady was in Washington D.C. organizing everything .
In 1863, Brady made an exhibition of photographs of the Battle of Antietam, in his gallery in New York, entitled "The Death of Antietam." Many of the images in that gallery were photographs of corpses, the first time the reality of the war was shown first-hand.