Systems of government differ in many ways. Which is the most significant way? A.
in the number of individual laws
B.
how a government prints currency
C.
in the location of the seat of government
D.
how power is shared among various levels of the government

I would say d is the suitable answer.

the hyksos invasion. the hyksos were able to attack egypt successfully because of their skills in using bronze weapons, composite bows and the use of the horse and chariot during the invasion. although the egyptians depict a barbarian-type overthrow, the truth is the seizure was likely a relatively peaceful one.