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: Tim had been smoking since he was young. Sentence 2: His friends and family begged him to quit. Sentence 3: He finally decided to do it. Sentence 4: Unfortunately he wasn't able to. Sentence 5: He kept trying but constantly failed. Choices: a. Quitting Smoking. b. The Smallest Player.

a