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: A Concert. Sentence 1: Lily had gotten a major role in a school concert. Sentence 2: She was scared she would mess up or forget her words. Sentence 3: Her mother assured her she was going to do terrific. Sentence 4: The words of courage enlightened her and made her feel at ease. Choices: a. He decides it is ok to occasionally not wear his hat. b. She was able to perform her part perfectly which made her happy.

Ex Output:
b

Ex Input:
Title: Armpit. Sentence 1: Dan was having a hard time keeping his pen out of his mouth. Sentence 2: He had a habit of chewing on the cap as he worked. Sentence 3: Dan's dentist told him he needed to stop this habit. Sentence 4: He rubbed his pen in his armpits to make it too nasty to chew on. Choices: a. Dan was dismayed when it didn't help. b. Tim and Jerry's parents activated the parental controls on their TV.

Ex Output:
a

Ex Input:
Title: The Spaghetti Shirt. Sentence 1: Abbey was really messy when she ate. Sentence 2: For that reason her parents gave her a special shirt. Sentence 3: This way when she ate pasta she wouldn't ruin her clothes. Sentence 4: They tried it out with spaghetti that night. Choices: a. Luckily, the shirt worked great and it was a huge hit from then on. b. Andrea was so grateful and loved the dress forever.

Ex Output:
a