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.

Input: Consider Input: Title: The Surgery. Sentence 1: Marla needed her appendix out. Sentence 2: She went to the hospital for surgery. Sentence 3: It went smoothly and she woke up quickly. Sentence 4: She was relieved it was all over. Choices: a. David's mom went home to get his bear. b. Within hours, Marla was up and walking around.

Output: b

Input: Consider Input: Title: The Athlete. Sentence 1: There once was a runner who was great at his sport. Sentence 2: He could outrun everyone. Sentence 3: However, his son grew up to be almost as fast as him. Sentence 4: When he finally raced his son, he cheated to win. Choices: a. It turns out, I could easily afford the new place. b. He felt awful in the end.

Output: b

Input: Consider Input: Title: Adri's Day!. Sentence 1: Adri was very nervous to start her day. Sentence 2: She was worried that she was going to fail her test. Sentence 3: She studied as much as she could before school. Sentence 4: When the test started she went very fast through it. Choices: a. Eventually Crosby's party was a hit! b. After the test she went home and slept!
Output: b