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: When I was in 9th grade my Biology teacher was very relaxed. Sentence 2: Every day he let people nap in his class if they were tired. Sentence 3: He didn't mind that they slept as long as they got good grades. Sentence 4: Eventually his students started doing badly on tests. Sentence 5: After that happened he no longer allowed sleeping in his class! Choices: a. Biology nap. b. Fair.

a