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: Reuben worked for a retirement home. Sentence 2: His job was to drive residents on group outings to the mall. Sentence 3: One day one of the elderly residents got separated from the group. Sentence 4: Reuben found her riding her motorized scooter in the parking lot! Sentence 5: Reuben got her safely back to the retirement home. Choices: a. Shopping Spree. b. The waves.

a