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: My boyfriend surprised me with a birthday gift. Sentence 2: It was in a tiny box all wrapped up pretty. Sentence 3: I was really excited to open it up. Sentence 4: It was a really pretty necklace. Sentence 5: He can be really sweet at times. Choices: a. Birthday Party. b. The birthday gift.

b