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: Everyone at Kate's office was getting sick. Sentence 2: There was a case of cold going around. Sentence 3: Eventually Kate started feeling sick too. Sentence 4: She had all the same symptoms. Sentence 5: She had to take days off to get better. Choices: a. Office Cold. b. Sam misses the bus.

a