20 POINTS!!!!
Which source is the most credible for researching hardships on citizens during the Civil War?

A. An Atlanta housewife's household journal, 1860-1865
B. A Union captain's daily reports on troop movement, 1861-1863
C. An eyewitness account of the Battle of Gettysburg
D. The Story of a Common Solider of Army Life in the Civil War, 1861-1865 by Leander Stillwell
I think it is A, am I right? please exlplain