Which of the sentences contain a subordinate clause? A. During his first year in England, T. S. Eliot showed his poems to the fellow American expert Ezra pound. B. Elliot was delighted when pound offered to serve as his editor, collaborator, and promoter. C. After seeing Elliot early poems, pound understood the proportions of Elliot talent. D. Under pounds influence, Elliot wrote some of the most important poems of the 20th century.