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: Sam studied for his math test all night. Sentence 2: He was sure he would do well in it. Sentence 3: Unfortunately he studied the wrong chapter. Sentence 4: Sam did terribly on the test. Sentence 5: His teacher told him to pay more attention next time. Choices: a. The Big Test. b. Time Out.

a