Answer:
B). Purpose.
Step-by-step explanation:
Storytelling is elucidated as the art of relating a sequence of events(in the form of a story) through using words and images in an improvised manner that helps convey the intended meaning by creating the desired impact on the audience while poetry is a literary form that uses a wordplay, imagination, and rhythm to deliver the intended thoughts in a creative and encoded manner that is required to be decoded by the audience for understanding it.
As per the question, the one thing that is similar in both the literary forms is 'its purpose' and that is to evoke the emotions of the audience so that they can associate themselves with the content and understand it comprehensively. Both forms of literature aim to present the content in a manner that helps the audience to establish an association(emotional) with it. Therefore, option B is the correct answer.