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: Emily had her first loose tooth. Sentence 2: She could not get it to come out. Sentence 3: Her friend gave her a handful of bubble gum. Sentence 4: She put it all in her mouth. Sentence 5: Within seconds her tooth got pulled out by the sticky gum. Choices: a. Going out for Sushi.. b. Loose tooth.

b