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: Olivia was pregnant. Sentence 2: She was joining her friends at a restaurant. Sentence 3: All her friends ordered drinks. Sentence 4: Olivia knew she couldn't drink while pregnant. Sentence 5: She ordered soda instead. Choices: a. Moving House. b. A Drink.

b