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: Marley checked in at the construction site for his shift. Sentence 2: He strolled in confidently and waved to his co-workers. Sentence 3: His supervisor, Harry asked him if he was forgetting anything. Sentence 4: Marley smiled and shook his head. Sentence 5: Harry then handed Marley his hard hat. Choices: a. Skinny Dipping. b. Safety First.

b