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.
Q: Title: Lay Down. Sentence 1: Kate was on a road trip with friends. Sentence 2: And they left very early. Sentence 3: Kate wanted to go back to sleep while someone else drove. Sentence 4: But the car was too small to lay down. Choices: a. Allie learned not to eat it again. b. She realized she had to settle for an uncomfortable, upright nap.
A:
b