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.

Ex Input:
Title: Horse. Sentence 1: I went to my uncle's farm in the country. Sentence 2: He had lots of animals on the farm. Sentence 3: My favorite were the horses. Sentence 4: I talked my cousin into letting me ride. Choices: a. When her parents found out, they became upset. b. He put me on the front of the horse while he rode it.

Ex Output:
b

Ex Input:
Title: Comic Fan. Sentence 1: Francis loves comic books. Sentence 2: He uses all his spare income to buy comics. Sentence 3: He visits his neighborhood comic store constantly. Sentence 4: His friend decided to surprise him with Comic Con tickets. Choices: a. Eli broke his leg and had to get a cast put on. b. Francis went to Comic Con and had a lot of fun.

Ex Output:
b

Ex Input:
Title: Talking in Class. Sentence 1: Samantha was always talking in class when she shouldn't be. Sentence 2: Her teacher tried everything to make her stop. Sentence 3: Finally she made her sit her desk right next to the teacher. Sentence 4: Samantha was so embarrassed that she was finally quiet. Choices: a. She looked so nice that he forgot he was even scared to begin with. b. She finally learned to stop talking in class.

Ex Output:
b