The third sentence is the correct one❤️❤️❤️
I looked it up and got 2 answers out of three possibilities
a. nonstandard usage
b. conversational speech
c. slang
some people said a while others said c
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.
d. Atlantic Ocean is the proper noun in this sentence.
hope this helped
Simile, ballad and rhyme.
I hope this helps you.