What is the purpose of the phrase "establish Justice, insure domestic Tranquility, [and] provide for the common defence" in the Preamble to the U. S.
Constitution?
A To guarantee that the American people will get to vote on all new
laws
B. To claim that the new Constitution can be changed over time
C. To show that the people hold all political power in the country
D. To explain that the U. S. government has a duty to protect its
people