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 seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.

Example Input: Title: Monster. Sentence 1: Kia submitted a picture of Bigfoot to her school newspaper. Sentence 2: Her school published it and accredited her the photographer. Sentence 3: A lot of people asked Kia about it. Sentence 4: In the end, she was forced to admit the truth. Choices: a. It was just her baby brother wearing a costume! b. Tommy's brother found him.
Example Output: a

Example Input: Title: The Lost Ticket. Sentence 1: George was supposed to ride a ferry one day. Sentence 2: When he went to board he noticed his ticket was missing. Sentence 3: He searched everywhere for the ticket. Sentence 4: Before long, the ferry had left without him. Choices: a. Luckily he was able to replace his ticket and catch a later ferry. b. It was great to keep memories around the house.
Example Output: a

Example Input: Title: The Rude Coworker. Sentence 1: Hannah had recently started a new job. Sentence 2: She liked it a lot except for one mean coworker. Sentence 3: The woman would always make snide and passive aggressive comments. Sentence 4: Hannah decided to mention this to one of her friendlier coworkers. Choices: a. Her boss gave her a warning and Tabitha vowed to be on time. b. Luckily, the woman had some great advice and Hannah felt confident.
Example Output:
b