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: Ben made plans with Diana to watch a movie on Friday. Sentence 2: As soon as he approached the theater, he waited for her. Sentence 3: A few hours have passed and she still didn't show up. Sentence 4: While building up frustration, Ben left and visited another friend. Sentence 5: They spent the rest of the day playing basketball. Choices: a. Change of Plans. b. The Incredible Day.

a