Given the task definition and input, reply with output. 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'.

Sentence 1: Shelly let her dogs out in the backyard to play. Sentence 2: Moments later she noticed a groundhog peeking out from under the shed. Sentence 3: She called the dogs back inside before they saw the critter. Sentence 4: Once inside, the dogs saw the groundhog and started barking. Sentence 5: The little groundhog ran under the fence to the neighbor's yard. Choices: a. Hot Kabob. b. Little Groundhog.

b