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: The doll caught on fire. Sentence 2: The girl thought it was funny. Sentence 3: She watched it burn. Sentence 4: It caught the house on fire. Sentence 5: The whole house burned down. Choices: a. churros. b. Fire.

b