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: There were a few fruit flies in my kitchen. Sentence 2: I ignored them, thinking them neutral visitors. Sentence 3: Soon there were large numbers of them. Sentence 4: I ended up having to sanitize the whole kitchen to be rid of them. Sentence 5: Now I never treat a few straggling insects with any regard. Choices: a. Fruit Flies. b. Generation gap.

a