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.
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Question: Title: Murder Mystery. Sentence 1: We went to a dinner and show one night. Sentence 2: There was a murder mystery on stage. Sentence 3: Someone was killed, and we had to solve the murder. Sentence 4: It was very entertaining. Choices: a. He is getting extra exercise. b. My son guessed the murderer correctly, and our meal was free.

Answer: b

Question: Title: New student. Sentence 1: Abby was a new student. Sentence 2: She was the talk of the school. Sentence 3: A lot of people wanted to be her friend. Sentence 4: She was happy she was gaining some allies. Choices: a. When Abby came home she was happy. b. A snow day was rewarded.

Answer: a

Question: Title: The Mattress. Sentence 1: The family was going camping. Sentence 2: They bought a new air mattress. Sentence 3: On their first day, they blew the mattress up. Sentence 4: It got so full, it popped! Choices: a. He managed to get it all home using his shirt like a nest. b. The family had to sleep on the hard ground.

Answer:
b