The purpose of the preamble of the constitution is to

a)establish and maintain the sovereignty of individual states.
b)describe and enforce the powers of the confederation government.
c)introduce and explain the core ideas of the new government.
d)define and distinguish the roles of domestic and foreign policies.

C) Introduce and explain the core ideas of the new government.

Explanation:

The Preamble to the Constitution is a short and succinct introductory statement of the fundamental aspirations and guiding principles at work in the full text of the Constitution.

It´s a declaration in very general terms, but courts have pointed to it as strong proof of the Founding Fathers' purposes about the Constitution's meaning and what they expected it would accomplish.

The Preamble serves only as an opening statement and does not allocate powers to the federal government, nor provides any limitations on government action.

C) Introduce and explain the core ideas of the new government.

Explanation:

The preamble of the Constitution established what the framers wanted to do with our new government, The preamble indicates the authors of the Constitution it concludes the primary goal of the framers in drafting the Constitution.

The Preamble of the united states expresses the idea of the people of the united states have the right to govern themselves.

a charter of rights that the rebellion made for king john to approve for basic rights.