Northwest China has become China's largest natural pasture and animal husbandry base is the reason ( ) A. Good quality of pasture, high livestock capacity B. Pasture species; livestock

Northwest China is located inland, hot and cold temperature changes dramatically, the annual precipitation showed a gradual decrease in the trend from east to west.

The advantages of the development of animal husbandry in the northwest region are: more species of grazing animals, excellent livestock species; good quality pasture, high livestock capacity; there is a wide range of temperate grasslands and mountain pastures, so the northwest region is China's largest natural pastures and animal husbandry base;

combined with the option.

So choose: C.