If I'm not wrong it's electric because without electricity many advancements wouldn't have been possible like for example; trains, light, radio etc; hoped it helped!
Answer:
I dont think thats possible
Explanation:
But in my history class they asked the same question and the teacher said maybe around 3-4million dollars
I am positive the answer is D
Let me know if its wrong and ill correct it
Answer: D. The Roman Emperor Constantine I, also called Constantine the Great (272-337) built his residence in Byzantium, and the city now known as Instanbul was called Constantinople after his name, (New Rome was a title that wasn't official). It became the capital of the Byzantine Empire that lasted <em>more than one thousand years</em>.
The answer to your question is b
you are welcome