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 having a small party. Sentence 2: He only wanted close friends there. Sentence 3: A friend decided to take a date. Sentence 4: It was awkward and Tom didn't appreciate it. Sentence 5: The date felt rightfully unwelcomed. Choices: a. Unwanted Guest. b. last goodbye.

a