Before and during the Civil War, Whitman stood firmly on the side of the North and wrote a series o£ poems which were gathered as a collection under the title of ______.

Before and during the Civil War, Whitman stood firmly on the side of the North and wrote a series o£ poems which were gathered as a collection under the title of ______.

A.Leaves of Grass

B.Drum Taps

C.Cavalry Crossing a Ford

D.When Lilacs Last in the Door yard Bloom'd

正确答案是B