Instructions: 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: Joe got his report card back and it wasn't good. Sentence 2: He knew his mom would ask to see it when he got home. Sentence 3: Walking home, he asked a friend to see his report card. Sentence 4: Looking at it, he decided to change some of his scores on his own. Sentence 5: Arriving home, his mother saw the card and said they mailed her one. Choices: a. Trouble At Home. b. Big Horn.
Output:
a