Answer:
The popular sovereignty refers to the principle that the governments rule and derive their power from the consent of the people that are governed. In other words that the governments are of the people for the people. This passage reflects that idea as it is the people of the United States that established the constitution.
I think the approach that often used is Constructivism.
Often times, in a specific society , there will be a characteristic of pattern and behaviors that are tolerated and the one that don't.
For example, in Eastern culture, it is not tolerated to call someone that is older solely by name.
(1) economists. (2) anthropologists. (3) philosophers.
