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: Jeff's son was sick. Sentence 2: His son went to school. Sentence 3: Jeff's son coughed and sneezed a lot. Sentence 4: He spread the sickness around. Sentence 5: A lot of other kids became sick. Choices: a. Trick or Treat!. b. The Sick Child.

b