Cavalry Crossing a Ford by Whitman reminds its readers of a picture, or a photo, of a scene of (　）.

Cavalry Crossing a Ford by Whitman reminds its readers of a picture, or a photo, of a scene of (　）.

A.the American War of Independence

B.the Westward Movement

C.the US-Spanish War

D.the American Civil War

正确答案是D