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: Candace was at home washing the dishes when her phone rang. Sentence 2: It was her son's school letting her know that he hadn't shown up. Sentence 3: After a brief search, she found a runaway note on his bed. Sentence 4: Unfortunately the police couldn't do much to help her find him. Sentence 5: Luckily, he came home a couple of days later and apologized. Choices: a. Unfortunate scale. b. The Runaway.

b