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: The river. Sentence 1: Kelly went boating on the wild river. Sentence 2: She forgot to take her favorite glasses off before boarding the boat! Sentence 3: Halfway down the river she hit a rough patch and the boat was shaken. Sentence 4: Her favorite glasses fell from her head into the deep, wild water. Choices: a. She learned her lesson, to never wear glasses while boating again! b. There was no rat, only a hairy, rotten potato.
[A]: b

[Q]: Title: The Pasta. Sentence 1: Aaron was a great chef. Sentence 2: He specialized in Italian dishes. Sentence 3: He made his own pasta and sauce. Sentence 4: When he fed it to his family, they all raved. Choices: a. It was their new favorite recipe! b. Now Karen goes out and doesn't worry about what she orders.
[A]: b

[Q]: Title: Bike Race. Sentence 1: Nate and Zach argued over who was the fastest on their bike. Sentence 2: Zach challenged Nate to a bike race. Sentence 3: Nate accepted the challenge and went home to get his bike. Sentence 4: Zach also got his bike and they met back up. Choices: a. Nate and Zach raced and it resulted in a tie. b. He laughed, the male looked like he was wearing a hat made of seaweed.
[A]:
b