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: Tammy's 25th birthday was underway. Sentence 2: She and her friends decided to go on a cruise. Sentence 3: The initial celebrations went well, with plenty of food and drinks. Sentence 4: As the evening went on, however, Tammy began to feel sea sick. Sentence 5: She spent the rest of the night bedridden. Choices: a. Cruise. b. Ice Skating.

a