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: Kelly brought her dog to the park. Sentence 2: She was having a nice walk. Sentence 3: All of the sudden she saw a sign. Sentence 4: The sign said no dogs allowed. Sentence 5: Kelley was horrified. Choices: a. Scary spider. b. No dogs allowed.

b