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: Tim had issues with his stomach. Sentence 2: He kept having to use the restroom. Sentence 3: Unfortunately he had to be at work soon. Sentence 4: Once there he kept going to the bathroom. Sentence 5: He got in trouble with his boss over it. Choices: a. An Infection. b. Stomach Problems.

b