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: Sue has a math test on Friday. Sentence 2: She has been studying for weeks. Sentence 3: She knew she was ready. Sentence 4: When she got to class, her teacher postponed the test. Sentence 5: Sue could not have been more mad after all her studying. Choices: a. A Lost Book. b. Math Test.

b