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.

Input: Consider Input: Title: Brain Freeze. Sentence 1: Ollie was walking in the park. Sentence 2: He bought an ice cream from a vendor. Sentence 3: He bit into the ice cream. Sentence 4: It was very cold and he got a brain freeze. Choices: a. Ollie jumped up and down as his father laughed. b. He should've done more research!

Output: a

Input: Consider Input: Title: Chunk. Sentence 1: Chunk was the fattest kid in school and everyone hated him. Sentence 2: Chunk even hated himself. Sentence 3: Chunk got a weird cancer and became weirdly thin. Sentence 4: All the kids made fun of him for being so skinny. Choices: a. Cal sold off everything but the chainsaw to Mike. b. Chunk decided that people were far worse than cancer.

Output: b

Input: Consider Input: Title: Jane Goes Home. Sentence 1: It had been years since Jane had been back home. Sentence 2: She got a call from her dad, saying her brother was very sick. Sentence 3: On the bus there, she remembered fighting with her brother. Sentence 4: Her parents picked her up at the bus station. Choices: a. She fell asleep in the cool sand, wishing she'd listened better. b. Her brother, in his robe, met her at the door and hugged her.
Output: b