According to the map, you can see that there is hardly any water source in Mongolia, but they do have some sources of water in the North-West region, but the people that are not near those water sources have no water. What this map tells you is that Mongolia has a hard time getting supplied with water, or they don't have a lot of places to get water. The people of Mongolia would have to get their water from other countries through trades of purchase.
I’m pretty sure it’s C because all throughout history women have worked on this but in the 1800-1900s more women joined together and brought many changes to the way society functions today. Hope this helps!