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: Birds. Sentence 1: I was about to drive back to school. Sentence 2: A flock of birds came and pooped all over my car. Sentence 3: I was going to use the hose to wash it off. Sentence 4: But the water might have frozen. Choices: a. Finally she replaced it. b. So I cleaned the windshield with a paper towel.
A:
a