Answer:
A. The Constitution
Step-by-step explanation:
The Constitution makes up the basis or 'premise' of our legal system. Judges, law-makers, law enforcement, and more all have to abide by these set of laws and criteria.
The founding fathers created this document to make an overlying blueprint for the United States. Being once ruled by a tyrant, the Constitution was made to have a 'just' fundamental set of laws that pertained to the free U.S citizen.