Answer:
A. To Show that the government must respect people's natural rights.
Step-by-step explanation:
The Preamble was written as a short introduction to why the Constitution was written. This also introduced the many rights citizens of a country must have in their life. When it states, "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," it lists the many promises that the United States Governments will do for their country.