Definition: In this task, you're given five sentences, numbered 1 through 5, and two options a and b for possible titles for the story. Your job is to choose the title that better fits the story. Indicate your choice by 'a' or 'b'.
Input: Sentence 1: Troy was pretending to be a wizard like his favorite movie. Sentence 2: Putting on a bathrobe and using a towel to make a wizard hat. Sentence 3: He waved his imaginary wand to and fro, casting spells. Sentence 4: His mother walked in, saw what he was doing, and broke into laughs. Sentence 5: Frustrated, Troy tried his best to cast a spell on her, but didn't. Choices: a. Robes and Hats. b. Ping Pong Match.

a