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: The dog was scratching at something. Sentence 2: He had a big tick on his neck! Sentence 3: The owner pulled it off. Sentence 4: The dog yelped but then felt better. Sentence 5: The owner decided to keep him inside more. Choices: a. The Tick. b. Home Alone.

a