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: Michael and Maryann were going on vacation. Sentence 2: They were driving across the country together. Sentence 3: Michael told Maryann that he check the oil and the tires. Sentence 4: He didn't check either. Sentence 5: Within the first hour the car breaks down and they have to get towed. Choices: a. CFO Promotion. b. Flat Tire.

b