Which phrase is included in the preamble to the U. S. Constitution?

A."secure the blessings of liberty to ourselves and our posterity"

B."by nature, all free, equal, and independent"

C."for their comfortable, safe, and peaceable living one amongst another"

D."no one can be put out of this estate"

A

Explanation:

"We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defense, 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."