Instructions: 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: Title: Bounce House Fun. Sentence 1: Laura took off her shoes and socks. Sentence 2: She crawled into the wobbly castle. Sentence 3: Up and down she jumped and tumbled. Sentence 4: Her delighted laughter ringing through the air. Choices: a. She exited the bounce house and retrieved her socks and shoes. b. Three years later she had a nose transplant.
Output:
a