The correct answer is A. it helps you elaborate upon your slogan.
According to literary critic Kenneth Burke, a dramatistic pentad (which means a set of five) refers to rhetorical elements that are important for determining the motivation of characters in a play: Act, Scene, Agent, Agency, and Purpose.
The purpose is there to answer the question - Why? In the context above, the purpose will make you come up with the clear goal as to what you want to achieve, which will help you create the perfect slogan.
