Which of the Following Is Established by the Supremacy Clause

Multiple Choice

Which of the following is established by the Supremacy Clause of the U.S. Constitution?

A) The president is the supreme and sovereign head of the United States.
B) The legislative branch of the federal government is the supreme law-making authority in the country.
C) The judiciary is the supreme law-enforcing authority and cannot be influenced by anyone, however powerful, in any manner.
D) The U.S. Constitution and federal treaties, laws, and regulations are the supreme law of the land.