Answer:
A) There was no national court system.
Step-by-step explanation:
The Articles of Confederation made the national government quite weak by for instance:
Denying it the power to tax
Denying it the power to create a national court system
As a result of the federal government being unable to create a national court system, they could not try people who violated laws as only the states could and their laws were not universal.
In conclusion, the federal government could not really enforce laws as it lacked the national court system to prosecute people in.