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: The Bowling Pin. Sentence 1: Liam and his friends loved going bowling. Sentence 2: They had a tournament amongst themselves every year. Sentence 3: This year, Liam bowled a perfect game! Sentence 4: He got to take home the bowling pin trophy. Choices: a. Liam started practicing for next year as soon as he got home. b. He came home from school to find she'd thrown out his bottle caps.
Example Output: a

Example Input: Title: Joana. Sentence 1: Adam was a junior, but he had a huge crush on a senior named Joana. Sentence 2: He loved to write songs on his guitar, so he wrote one just for her. Sentence 3: Then, gathering his nerve he played it for her during free period. Sentence 4: Joanna's face lit up at the emotion of Adam's song. Choices: a. She asked him for a date right then and there! b. I went home feeling proud of the peach soda I had found.
Example Output: a

Example Input: Title: The Shark. Sentence 1: Paul loved going to the aquarium. Sentence 2: The sharks were his favorite. Sentence 3: They were so scary and menacing. Sentence 4: He waited until the keepers dropped fish in. Choices: a. He was having a lot of fun at the casino! b. The sharks ate the fish whole.
Example Output:
b