Answer :
The statement that best describes the purpose of the opening words of the United States Constitution is: A. political sovereignty stems from the consent of the people
I believe the answer is: A. political sovereignty stems from the consent of the people
In political sovereignty, every decisions made by the government should be made for the benefit of the people.
Which is why a country which acknowledge political sovereignty would adopt a democratic system in its government, because this is the best system to find out the consent of majority of people, by letting them choose the representatives through votings.