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: The boy hid in the woods. Sentence 2: His dad looked for him. Sentence 3: It started to get dark. Sentence 4: His dad got worried. Sentence 5: His dad searched frantically for his son. Choices: a. Jenny loses weight. b. woods.

b