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: Teresa's tooth hurt pretty badly. Sentence 2: She tried pressure. Sentence 3: She tried ice. Sentence 4: Finally she called the dentist. Sentence 5: She needed a root canal! Choices: a. Beep Beep. b. Toothache.

b