When（）had himself well-established, his New England's religious background, his authoritative habit of mind, and his fears of the socialist revolution gradually turned him to the choice of conservatism and a hierarchic society.

When（）had himself well-established, his New England's religious background, his authoritative habit of mind, and his fears of the socialist revolution gradually turned him to the choice of conservatism and a hierarchic society.

A.William Butler Yeats

B.T.S. Eliot

C.John Galsworthy

D.George Bernard Shaw

正确答案是B