I think you are right. The form verbs take to express a hypothetical or possible situation.
D. An artificial device used to replace a missing body part
I hope that helps. Good luck
I believe what this passage foreshadows is that C. Rome will suffer danger and destruction.
You can see in the excerpt that no good things are happening - there is a fire, and something is burning, and people are afraid - so obviously, it doesn't mean that it is going to prosper or be renewed, when something so terrible is happening. One slave cannot destroy an empire, which is why that is incorrect too.
The answer is showing sudden irritation