Counties support the state government by using a Bicameral system creating to side branches such as the federal of state have, but this branch passes on laws that can be signed by other States giving them that thier state/counties are eligable to do what ever act the government has givien them, such as Formal President Barack Obama gave and signed the ObamaCare Act, and many States/Counties signed for as well.

Manchuria rich in natural resources and sparsely populated had obvious advantages for a densely populated and resource-poor Japan. Amongst Manchuria's resources coveted by Japan were iron, coking coal, soybeans, salt and above all land, all severely lacking within the Japanese empire in 1930.
The answer would be a.The lords needed to protect their land from other nobles. Hope this helps:)