The correct answer is D. To unite the states more fully under one government.
Explanation
This text is a fragment of the United States Constitution created after the victory in the Independence War. This text expresses a summary of the main objective of the Constitution in the establishment of a newly independent country. According to the above, the phrase "to form a more perfect Union" means that all the states have to be united to build a thriving state. So, the correct answer is D. To unite the states more fully under one government.
