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: The woman bought an apple. Sentence 2: She bit into the apple. Sentence 3: There was a worm inside. Sentence 4: She spit out the apple. Sentence 5: She returned the apple for a refund. Choices: a. New flooring. b. Apple.

b