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: Betty got detention. Sentence 2: She snuck out of detention. Sentence 3: Her teacher caught her sneaking out. Sentence 4: She gave her twice as much detention. Sentence 5: Betty finished her detention. Choices: a. Hair. b. Detention.

b