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: Jeremy stammered when he talked and people made fun of him. Sentence 2: He was so desperate to make the jokes stop, he stammered even more. Sentence 3: He took many lessons to help him stop stammering. Sentence 4: But as he couldn't stop, he started singing instead. Sentence 5: To his satisfaction, when he sang, people stopped making fun of him. Choices: a. Concert. b. Stammer.

b