Detailed Instructions: 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: Race Horse. Sentence 1: Katherine bet it all on Biscuit. Sentence 2: As she watched the race horses make the final lap, the crowd roared. Sentence 3: She got caught up in the excitement and jumped out of her seat. Sentence 4: However, she threw down her ticket when she looked at the scoreboard. Choices: a. Jane had to go home early out of shyness. b. Biscuit didn't even place.
A:
a