Puzzlement is the correct answer
I say it would be the second one because to show possession you have to have an apostrophe.
predictive: I think that it will be sunny outside. I think I'm going to ace this test. I believe that my teacher has a pet.
non-predictive: I love playing outside! Math is my favorite subject in school. I am going to a movie this afternoon.
Yes the correct answer is "said" (b). If you get stuck on a similar question, it helps to read the sentence with each comma to hear which makes sense.
Answer:
I think it's had started.
