Walt Whitman wrote down a great many poems to air his sorrow for the death of President（）， and one of the famous is “When Lilacs Last in the Dooryard Bloom’ d.”

Walt Whitman wrote down a great many poems to air his sorrow for the death of President（）， and one of the famous is “When Lilacs Last in the Dooryard Bloom’ d.”
A、Washington
B、Lincoln
C、Franklin
D、Kennedy
正确答案：B