Among the three stages of his poetic career, S. B. Yeats's major concern in the second stage is （ ）.
A.dichotomous in subject matter, such as youth and age, love and war, body and soul B.a mock of the bourgeois philistines and their meanness of spirit and selfish materialism C.about Celtic legends, local folk tales, or stories D.Love and War, the two primary passions of human beings正确答案B
