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.

Title: License Plates. Sentence 1: My car had expired license plates for almost a year. Sentence 2: I decided to go get new plates so I could drive it again. Sentence 3: I was expecting the price to be around 70 dollars not 174 dollars. Sentence 4: They wanted me to pay for the time it was just sitting. Choices: a. I did not get plates because I don't have enough money. b. They helped him out a lot.
a