What is the definition of humor? a. A literary tool that makes audience laugh, or that intends to induce amusement or laughter.
d. A call to action used by people who want to argue for a position.
b. A literary tool to inspire and provoke change.
C. A reference to a literary or historical figure, happening, or event.

A, a literary tool that makes audience laugh, or intends to induce amusement or laughter  

from the political point of view it could be said that the candidate   is an effective speaker because she takes a strong position on the issue. it is an open discussion but probably she is making a presentation and can choose which subjects she wants to address. she is very likely to attain her aim which is to convince voters to accept her proposal.

the answer is b. i read this story before.