The forth wall acts as a barrier between the fictional world and the real world. I would believe the answer to this is C, the characters speak directly to and interact with the audience.
"Every accomplishment starts with the decision to try." "As we express our gratitude, we must never forget that the highest form of appreciation is not to utter words, but to live by them." "Those who dare to fail miserably can achieve greatly." "The ignorance of one voter in a democracy impairs the security of all."
