At this point, the author wants to add a sentence to the paragraph that further illustrates his adventurous nature. Which of the options does this best?

F. I certainly didn’t know what I had signed up for!
G. Downhill ice-skating sounded much more exciting than normal ice-skating!
H. I could easily have been injured, but the thrill I got was worth the risk!
J. I normally wouldn’t sign up for such a thing, but anything goes at Carnaval!