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: Tom was driving around. Sentence 2: He could barely see anything. Sentence 3: His windshield was too dirty. Sentence 4: Using his wipers just made it worse. Sentence 5: Tom had to pull over to clean it. Choices: a. Riding in the Driveway. b. Dirty Windshield.

b