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: Sean was at work one morning. Sentence 2: His boss announced that a new person had joined the team. Sentence 3: He introduced the new coworker, Jenna. Sentence 4: Sean actually recognized her from back when they went to school. Sentence 5: The two reconnected throughout the day and planned to hang out more. Choices: a. A New Coworker. b. Raining Hike.

a