Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be the one having to do with the Roman empire being more diverse, since the Romans were more of a trading society than the Chinese at this time. Comparing Han China and the Roman Empire gives context and assists understanding of China's interactions and relations with other civilizations of Antiquity. In his China and the Roman Empire before Constantine, their "differences outweighed the similarities".
