Yank，the protagonist of Eugene O'Neill's play The Hairy Ape, talked to the gorilla and set it free because（ ）.
A.he was mad，mistaking a beast for a human
B.he was told by the white young lady that he was like a beast and he wanted to see how closely he resembled the gorilla
C.he was caged with the gorilla after he insulted an aristocratic stroller
D.he could feel the kinship only with the beast
正确答案是D