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: The batter stepped up to the plate. Sentence 2: The pitcher got a signal from the catcher. Sentence 3: He squared up ready to throw. Sentence 4: He zipped a fastball towards the plate. Sentence 5: The batter crushed it out of the park for a home run. Choices: a. Home Run. b. Proposal after the break up.

a