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: Tom studied really hard for a test. Sentence 2: He thought he got a perfect grade. Sentence 3: When he got the assignment back it was much lower. Sentence 4: Tom argued with his teacher over it. Sentence 5: Unfortunately the grade wasn't changed. Choices: a. Perfect Grade. b. Fairies to fiery!.

a