Answer:
I believe it's D. It was an unsuccessful revolt against the Qing Dynasty.
Explanation:
Hope this helps you!
Your question has a very long and complicated answer. I found it much easier to type the answer out on my PC and take pics of the answer. I hope it is what you were looking for. Good luck!
A subordinate clause, or a dependent clause is the correct answer. A dependent clause cannot exist on its own, it has to be a part of a main, independent clause.