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: App Updates. Sentence 1: Nina needed to access her phone as quickly as possible. Sentence 2: She was about to make an urgent call when something popped up. Sentence 3: Suddenly dozens of apps began updating themselves. Sentence 4: By the time the downloading stopped it was too late. Choices: a. Tony decided to quit his job right then and there. b. Nina had to find a different phone to make her call.
Example Output: a

Example Input: Title: Why. Sentence 1: He asked me why I did it. Sentence 2: I sat in the chair and shrugged. Sentence 3: The principal stood up and said he was calling my parents. Sentence 4: I nodded, uncaring if he did or not. Choices: a. He paused in confusion and decided not to do it. b. She enjoyed her friends company, but left very hungry and irritated.
Example Output: b

Example Input: 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.
Example Output:
b