Which of these sentences contains a subordinate clause?
A.
During his first years in England, T. S. Eliot showed his poems to his
fellow American expatriate Ezra Pound.
B.
Eliot was delighted when Pound offered to serve as his editor,
collaborator, and promoter.
C.
After seeing Eliot’s early poems, Pound understood the proportions of
Eliot’s talent.
D.
Under Pound’s influence, Eliot wrote some of the most important poems
of the twentieth century.
