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: Tina had a birthday party. Sentence 2: She was so excited for it. Sentence 3: But unfortunately no one showed up. Sentence 4: Tina felt so defeated. Sentence 5: She realized they were not her real friends. Choices: a. No one showed up. b. A Reason To Practice.

a