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: School Day. Sentence 1: Today I arrived to school a bit late. Sentence 2: I had a presentation to give in front of the whole class. Sentence 3: I nervously stood at the podium. Sentence 4: I noticed I was wearing only my underwear. Choices: a. I woke up to find it was all just a bad dream. b. Cathy was glad she would be house sitting for her parents.
A:
b