The work may be done in a thousand different ways, with the brain or the hands, in the study, the field or the workshop; if it is honest work, honestly done and well worth doing, that is all we have a right to ask.

In the second half of the second sentence (the part that begins, "if it is honest work…"), Roosevelt uses:
A. antithesis.
B. onomatopoeia.
C. climax.
D. subordination.
E. metonymy