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: I finally decided to start to get into shape. Sentence 2: I looked through a lot of different exercise programs. Sentence 3: I chose a moderate activity one. Sentence 4: I tried it out for the first time yesterday. Sentence 5: It felt like the perfect workout regime for me. Choices: a. Lucky Biker. b. My new workout regime..

b