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: Dave was a pitcher for his school's baseball team. Sentence 2: And he had an important match coming up. Sentence 3: So he practiced throwing curve balls for six hours each day. Sentence 4: And he became very confident. Sentence 5: Everyone called Dave a hero when he struck everyone out. Choices: a. Curve Ball. b. Dog Chase.

a