The national government cannot create a national divorce law system because

s the president shall be commander in chief of the army and navy of the united states, and of the militia of the several states, when called into the actual service of the united states; he may require the opinion, in writing, of the principal officer in each of the executive departments. sooo yeahhh

explanation:

the answer is a. laws were enacted in the aftermath of the plot to make it harder to free slaves,increasing sectionalism