In ancient times<em> China</em> was isolated because of the mountains and rivers, they had the Himalayas and the Gobi, as good barriers. They believed that were alone in the world. Living in isolation made difficult to govern there, because of the large areas they had. This made people lived in different parts of China, create their own culture and costumes too, dialects, and way of speaking.
The correct answer for this question is "d.they should leave their current dangerous neighborhoods."
A turn-of-the-nineteenth-century real estate ad targeted to immigrant workers says, "where there was darkness, now there is light." This adimply about the lives of working is that <span>they should leave their current dangerous neighborhoods.</span>
