Which statement best describes the united states

a. it has a socialistic economic system

b. it is a constitutional monarchy

c. it is a confederation

d. it is a democracy and a federation

ANSWER:

It is a "democracy and a federation" is the best statement that would describe the US.

EXPLANATION:

Democracy is known as a system in which the people selects a reasonable candidate to run the country. The nation is managed by three types of democracy namely parliamentary, presidential and mixed.Federation is defined as a process of creating a state or a huge organization into a single group in which the control is done from a common point.

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years