I believe the best answer is D. The discrepancy between what is expected and what really happens as with dramatic irony, this could be quoted as a definition. Dramatic irony is when a reader expects one thing to happen, but something else happens, or when the reader knows something will happen but the character does not.
I think it's C) sight, taste and hearing. Pouring the milk appealing to sight, sweet milk appealing to taste and uproar appealing to hearing.
He was almost impeached because he was found of being corrupt and unuseful