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: Jane was out with friends having dinner. Sentence 2: It was her birthday. Sentence 3: They all went back to a friend's house after. Sentence 4: They had set up a surprise party for Jane. Sentence 5: Jane was surprised and super happy. Choices: a. Stolen Identity. b. Surprise Party.

b