The correct answer is C) He exposes the aunt's flaws by telling an improper story that occupies the children.
The character of the bachelor adds to the satire of "The Storyteller" in that He exposes the aunt's flaws by telling an improper story that occupies the children.
The aunt wants the bachelor to learn his lesson but the aunt ends up learning hers instead. That is an example of situational irony that Saki uses to create satire.
Satire is the type of literature that relies on the irony of a situation and makes fun of it. Satire can make fun of personalities, human conditions, exaggerating human flaws, or signaling weaknesses.