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.

Example input: Title: Marcus Buys Khakis. Sentence 1: Marcus needed clothing for a business casual event. Sentence 2: All of his clothes were either too formal or too casual. Sentence 3: He decided to buy a pair of khakis. Sentence 4: The pair he bought fit him perfectly. Choices: a. Marcus was happy to have the right clothes for the event. b. He left in a huff for having his ideas mocked.
Example output: b
Example explanation: Marcus is buying clothes for a business event and not presenting an idea.
Q: Title: Firm handshake. Sentence 1: Katherine hoped to make a good impression on her job interview. Sentence 2: As she knew her handshake was too firm, she practiced it a lot. Sentence 3: But when it was time to actually shake hands, she made a mistake. Sentence 4: She was so enthusiastic, her hand grabbed her future boss too hard. Choices: a. He smiled, surprised, and hired her on the spot. b. He had forgotten that blue cheese had penicillin in it.
A:
b