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: The color of Love. Sentence 1: Love was a thing that seemed out of reach for Ernesto. Sentence 2: He thought that love was only for the luckiest of people. Sentence 3: That all changed one day when he was set up on a blind date. Sentence 4: The date was love at first sight and they both couldn't to leave. Choices: a. They gathered their things and headed towards the airport. b. 9 months later there was a baby and they ended up happily together.

Ex Output:
b

Ex Input:
Title: Accident. Sentence 1: The teacher began her lesson. Sentence 2: A student asked to use the restroom. Sentence 3: The teacher refused the request. Sentence 4: The student had an accident. Choices: a. The parents of the student sued the school. b. I didn't want to leave when it was time.

Ex Output:
a

Ex Input:
Title: The Secret. Sentence 1: Gillian knew a secret about his friend's boyfriend. Sentence 2: It wasn't good. Sentence 3: He was contemplating how to bring it up to her. Sentence 4: He didn't like situations like this. Choices: a. I got a great score and had a great time. b. Gillian disregarded his feelings for his friend's feelings.

Ex Output:
b