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: Kate had a final exam in biology. Sentence 2: She was tired of studying. Sentence 3: She finally decided she was ready. Sentence 4: When she got to class, her teacher passed out the exams. Sentence 5: Kate took her test and aced it. Choices: a. Forgiving. b. Exam.

b