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: I was in the shower. Sentence 2: I had just finished lathering the shampoo. Sentence 3: The water stopped. Sentence 4: No other water in the house worked. Sentence 5: I called a plumber, then went next door to wash out my hair. Choices: a. First Class. b. Bad Pump.

b