Detailed Instructions: In this task, you're given the title of a five-sentence story, the first four sentences, and two options for the fifth sentence as a and b. Your job is to pick the sentence option that seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.
Problem:Title: Big Birthday. Sentence 1: Amy wanted to go to Vegas when she turns 21. Sentence 2: She started planning the trip and invited her friends. Sentence 3: She started to save her money up until the day she left. Sentence 4: Amy and her friends had a blast. Choices: a. So he asked to move his seat. b. She won enough money to cover her entire trip.
Solution:
b