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 tapped his steering wheel impatiently. Sentence 2: He changed lanes, only to find himself moving slower. Sentence 3: Outside his window, he saw a pedestrian walking past him. Sentence 4: Michael honked his car impatiently. Sentence 5: The traffic barely inched forward. Choices: a. Bugging Me. b. Traffic.

b