In a unitary system of government, power is held by state governments. held by a central government. held by a single person. held by a group of people.

answer: alexander hamilton

explanation: alexander hamilton was george washington's right hand man. he took an early role in the militia as the american revolutionary war began. in 1777, he became a senior aide to general washington in running the new continental army.

that would be the steamboat because none of the other things are forms of transportation

  the common sense as a pamphlet written by thomas paine. it promoted the independence of the colonies from british rule. the distribution of this pamphlet was great, it reached people everywhere and it was even read aloud at places people met. it also unite the colonists before the revolutionary war.

answer is d

thanos obviously donald trump aint got nothin on thanos