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 idea is expressed in this excerpt from the Constitution?
A. The structure of the government will change over time.
B. An individual's right to justice is something the government can
protect
C. It is more important for the government to run efficiently than to
protect individual rights.
D. The powers of government should be separated among its
branches.