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: The Car Nap. Sentence 1: Tim was working on a project in his math class. Sentence 2: He was extremely tired after a long night of homework. Sentence 3: He decided to skip out on class because he couldn't focus. Sentence 4: Then, he noticed his car in the parking lot. Choices: a. Luckily she understood and still gave him a belated message. b. He decided to take a nap in his car until he felt better rested.
A:
b