The act of directing, ordering, or controlling by virtue of explicit statutory, regulatory, or delegated authority at the field level is referred to as "command," since this can be exercised at a variety of different power levels.
Answer:
It was important for the Confederacy to defend Richmond, Virginia because Richmond was the seat of the Confederate government (its capital). The loss of Richmond would be the Union equivalent of losing Washington D.C. to the Confederates. It was widely considered that the capture of the other side's capital would signal the end of the Civil War.
The answer is C my friend.