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 man flossed his teeth. Sentence 2: His gums bleed. Sentence 3: He spit blood into the sink. Sentence 4: His wife saw the blood. Sentence 5: His wife made him an appointment with the dentist. Choices: a. Dentist. b. The Boat Trip.

a