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: My daughter was struggling with her math class. Sentence 2: She brought some difficult homework home. Sentence 3: We both worked on it for several hours. Sentence 4: She began to understand the material. Sentence 5: She got a good grade on her assignment. Choices: a. Math homework. b. Bad parking.

a