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: Tim learned martial arts as a kid. Sentence 2: Tim's favorite move was striking with an elbow. Sentence 3: Tim was attacked one night. Sentence 4: Tim used his elbow striking to ward off the attackers. Sentence 5: Tim was very happy his skills were utilized wisely. Choices: a. Rude Driver. b. Elbow.
Output:
b