Question

we, the people of the united states, in order to form a more perfect union, establish justice, insure domestic tranquility, provide for the common defence, promote the general welfare, and secure the blessings of liberty to ourselves and our posterity, do ordain and establish this constitution for the united states of america.
which principle is contained within the preamble of the united states constitution?
a. equality
b. federalism
c. checks and balances
d. popular sovereignty

Explanation:

The Preamble of the US Constitution includes principles like popular sovereignty (the idea that government power comes from the people). "Equality" is more a broader ideal, "federalism" is about state - federal power division, and "checks and balances" is about branch power control. Popular sovereignty is in the Preamble's focus on the people establishing the government.

Answer:

D. popular sovereignty