Instructions: 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: Ben had been dating his girlfriend for six years. Sentence 2: He decided it was finally time to propose. Sentence 3: He bought a ring and her favorite flowers. Sentence 4: At the restaurant, he had the waiter prepare a special dessert. Sentence 5: When his girlfriend found the ring in her cake, she said yes! Choices: a. the proposal. b. William the Sailor.
Output:
a