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: Lila's New Friends. Sentence 1: Lila was sad because she had no friends. Sentence 2: She tried to make friends, but she was too shy. Sentence 3: One day at the park Lila saw some kids playing. Sentence 4: One of the kids saw Lila looking at them and asked her to play too. Choices: a. Now Lila goes to the park every weekend to play with her new friends. b. She was too embarrassed to tell Jan she didn't have much money.

Ex Output:
a

Ex Input:
Title: Crept. Sentence 1: Steve crept up to a running car. Sentence 2: A girl was sitting inside. Sentence 3: He banged loudly on her window. Sentence 4: The girl panicked. Choices: a. She drove the car into a pole. b. Penny would go on to become an international fashion designer.

Ex Output:
a

Ex Input:
Title: Bob the Boxer. Sentence 1: Bob grew up watching boxing on TV. Sentence 2: He decided to join a gym to learn how to box. Sentence 3: Bob practiced boxing for years. Sentence 4: Bob starting winning tournaments for his boxing abilities. Choices: a. She chose her favorite flavor, strawberry, and purchased it. b. This summer, Bob is going to box in the Olympics.

Ex Output:
b