Answer :
I'd say B is the correct answer. Both China and the Roman Empire were huge during their golden ages. Apparently the Chinese knew of the existence of the Romans and thought it was their counterpart. Like Yin and Yang. I think they never really met though. Chinese envoys managed to reach the black sea but didn't get any further.
I deviated from the actual question sorry^^ I think B is correct
I deviated from the actual question sorry^^ I think B is correct