The correct answer is option (c) "bare choirs". One of the most famous sonnets of William Shakespeare is "Sonnet 73" which main theme is getting old as time passes. The first stanza of the sonnet compares leafless limbs with bare choirs, as can be noted in the following lines "When yellow leaves, or none, or few do hang Upon those boughs which shake against the cold, Bare ruined choirs, where late the sweet birds sang".
