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: Every day Ashley takes her dog Cora for a walk. Sentence 2: They go down the alley behind her house and around the block. Sentence 3: Cora knows the route very well and doesn't stray. Sentence 4: She also knows if she goes potty, she'll get a treat. Sentence 5: Since Ashley started walking her, she's stopped pottying in the house. Choices: a. Cora's Treat. b. Happy Day.

a