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: Stan collected comic books. Sentence 2: He had left his collection in a box in his room. Sentence 3: Stan's brother went into his room. Sentence 4: He got peanut butter on one of his favorite comic books. Sentence 5: Stan was very mad at his brother. Choices: a. Quitting. b. The Comic Collector.

b