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: All About a Boy. Sentence 1: Rachael and Kristy were best friends. Sentence 2: Rachael was dating a boy named Mark. Sentence 3: Mark broke up with Rachel for no reason. Sentence 4: The next week Mark and Kristy started dating. Choices: a. Impatient Agnes ended up waiting much longer than ten minutes. b. Rachael and Kristy are no longer best friends.

Output: b

Input: Consider Input: Title: Spotted. Sentence 1: Dan noticed several mangoes on his tree. Sentence 2: He grabbed a ladder and climbed on top of his shed. Sentence 3: While he was grabbing the mangoes, the neighbor noticed. Sentence 4: Since the tree was on his yard, he became mad. Choices: a. Charles decided to play with them again. b. He threatened to call the cops if Dan continues to take the mangoes.

Output: b

Input: Consider Input: Title: Food Poisoning. Sentence 1: Tom had a big cookout. Sentence 2: He invited several family and friends. Sentence 3: Unfortunately he used some bad meat. Sentence 4: Several people got sick. Choices: a. Tom had to get it professionally filled. b. Tom had given them food poisoning.
Output: b