What is the unitary form of government?

Group of answer choices

a system of government in which independent nations are loosely associated

a system of government in which power is shared between the central government and state governments

a system of government in which legislative and executive powers are held by a single individual or small group

a system of government in which the central government has created agencies of local government but can change or abolish them at any time

i need the answer ASAP please

I'm not really sure about the answer but I think its D.

Explanation:

I think it's D because in a Unitary State, which is the most common form of government, the national government has total authority over all of the country's other political subdivisions.

I hope it's right.

the completion of the erie canal spurred the first great westward movement of american settlers, gave access to the rich land and resources west of the appalachians and made new york the preeminent commercial city in the united states.

number 1 is a)