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: Pesto. Sentence 1: The family grew lots of basil in their garden. Sentence 2: They picked it and put it in a food processor. Sentence 3: They blended it up with cheese and olive oil. Sentence 4: It made some delicious pesto. Choices: a. It turns out this hair dye was marked wrong and her hair is pink now. b. They couldn't wait to cook with it!

Ex Output:
b

Ex Input:
Title: Dance. Sentence 1: Aaron was practicing new trendy dance moves. Sentence 2: He stood in front of his mirror to dance. Sentence 3: He was getting really into it. Sentence 4: All of a sudden, his older sister walked in. Choices: a. She laughed at Aaron for five minutes. b. It was basically empty by March.

Ex Output:
a

Ex Input:
Title: Ice Cream. Sentence 1: We went out to get ice cream. Sentence 2: I picked the dirt and worms. Sentence 3: It was vanilla with oreos and gummy worms on top. Sentence 4: I ate it with a spoon. Choices: a. He decided to just not have people over instead. b. Our daughter thought it was funny and laughed the whole time.

Ex Output:
b