The correct option is C Elegy
Option D, Elegy is a poem written on the death of someone loved and lost. Option 'Ode' is a poem expressing writer's feelings about a particular person or subject. Option B 'Epic' is a long poem, book or film which has a lot of action and is usually dealing with historical events. Option C 'Sonnet' is fourteen line rhyme with a specific rhyme scheme. So, options A, B and C are incorrect and the correct word for the given phrase is Option D, Elegy.