HISTORY:

ONE OF THE TWO PRIMARY PURPOSE OF THE CONSTITUTION'S PREAMBLE WAS TO.

1. DETERMINE HOW TO KEEP THE UNITED STATES PEACEFUL.
2. OUTLINE THE SIX GOALS FOR THE COUNTRY.
3. INTRODUCE EACH OF THE 27 AMENDMENTS.
4. EXPLAIN THE REASON BEHIND THE BILL OF RIGHTS.

2. OUTLINE THE SIX GOALS FOR THE COUNTRY.

The correct answer is:

2. OUTLINE THE SIX GOALS FOR THE COUNTRY.

The preamble of the United States Constitution serves two primary purposes. One of these purposes is to outline the six goals for the country. The goals, as stated in the preamble, are: 1) to form a more perfect union, 2) to establish justice, 3) to insure domestic tranquility, 4) to provide for the common defense, 5) to promote the general welfare, and 6) to secure the blessings of liberty to ourselves and our posterity.

To determine the answer to this question, we need to analyze the primary purpose of the Constitution's Preamble. The Preamble of the United States Constitution serves as an introductory statement that outlines the goals and intentions of the framers of the Constitution. It describes the purpose of the Constitution and sets the foundation for the rest of the document.

Option 1: Determine how to keep the United States peaceful.
While maintaining peace is an important aspect of governance, it is not one of the primary purposes explicitly stated in the Preamble.

Option 2: Outline the six goals for the country.
This is the most accurate statement. The Preamble clearly outlines the six primary goals of the country, which are 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."

Option 3: Introduce each of the 27 amendments.
The Preamble of the Constitution does not introduce each of the 27 amendments. These amendments address specific rights and protections that were added to the Constitution after its initial drafting.

Option 4: Explain the reason behind the Bill of Rights.
Though the Bill of Rights is an integral part of the United States Constitution, the Preamble does not specifically explain the reason behind its creation.

Therefore, the most accurate answer is option 2: the primary purpose of the Constitution's Preamble was to outline the six goals for the country.