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: Jonah worked for a fish-processing factory. Sentence 2: He always loved eating fish. Sentence 3: One day, Jonah witnessed an employee pick a fish off the nasty floor. Sentence 4: The employee put the fish right back on the conveyor belt. Sentence 5: Jonah vowed to never eat fish again. Choices: a. Buying a laser. b. Behind Closed Doors.

b