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: expensive troubles. Sentence 1: John's car had broke down. Sentence 2: John made use of the warranty. Sentence 3: John did not realize it would cost a lot to fix the car. Sentence 4: John realized the price of the fix was similar to a new car. Choices: a. John bought a different car from a different brand. b. He was able to get some items back.
A:
a