A poem consisting of fourteen lines is
The correct answer is: B
Explanation
A sonnet is a poem consisting of exactly fourteen lines, typically written in iambic pentameter. Sonnets often follow specific rhyme schemes and are usually associated with themes of love, nature or reflection.
A narrative is a poem that tells a story, regardless of its length. An ode is a type of lyrical poem that is usually longer and praises something or someone. An elegy is a mournful poem, often lamenting someone's death, but it can be of varying lengths.