World history question about the great wall of china : why did shi huangdi order the construction of the great wall?
a. to discourage invasion from the north.
b. to protect his system of feudalism.
c. to establish the borders of china.
d. to keep peasants from escaping his kingdom.

Two of these describe "federalism." (choose two answers) select one or more: a. the national government absolutely controls all state governments. b. power is shared by the national and state governments. c. state governments exercise absolute power over the national government. d. it is a compromise meant to eliminate the disadvantages of a "unitary" and a "confederate" system.