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: The house was empty when Jim woke up. Sentence 2: Jim tried calling his sister but no response. Sentence 3: He went to work as usual anyways. Sentence 4: When he came home he was met by a surprise. Sentence 5: His whole family was there with cake! Choices: a. Birthday. b. Rose With Thorns.

a