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: My mother loved to go gambling. Sentence 2: She would spend days at the casino. Sentence 3: It was obvious she had a problem. Sentence 4: We told her if she gambled we would not let her see her grandkids. Sentence 5: She checked herself into a treatment program soon after that. Choices: a. Shake. b. Gambling.

b