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: Ken was tired of being laughed at for his lack of muscles. Sentence 2: He took a membership at his nearest health club. Sentence 3: He showed up the next day with white skin and no muscles. Sentence 4: He worked a whole year, many hours a day. Sentence 5: When he went outside shirtless, no one laughed at him anymore. Choices: a. Lack of muscles. b. Mary Had a Little Lamb.

a