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 does not connect with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes less sense.
Q: Title: New Car. Sentence 1: Norma had just landed a cushy new government job that required travel. Sentence 2: However the family's second vehicle's engine had died at a bad time. Sentence 3: Her father-in-law offered to finance a new car to help her out. Sentence 4: She did some research into different vehicles and insurance costs. Choices: a. It was effective for the most part. b. Her father-in-law was very generous to finance a new Prius for her.
A:
a