There's quite a lot, the easiest way to figure this one out is to look it up.
The correct option is D.
The statement in option D reveals that the youthfulness which the four old people gained was very momentarily, it soon passed away and they were back to square one.
1. I wonder why are deadly extreme sports more popular than ever?
2. I'm asking you who is the most determined person you know?
3. I'm curious to find out is it your first time to go mountain climbing?
4. The reason why I won't go hang gliding is because I'm afraid of heights.
5. I'm telling you be careful when you go skateboarding.
6. Do you know if there are more people trying rock climbing than ice climbing?
hope this helps!
