Which statement shows how federalism is expressed in the US Constitution A- The national government is divided into three separate branches
B- executive branch has the power and you need to carry out laws
C- The power of the government is divided into state and national levels
D- The legislative branch has the power to overturn a presidential veto

C. The power of the government is divided into state and national levels

Explanation:

Federalism is the form of government where it combines a federal government with smaller state governments.

The power of the government being split into state and national levels would therefore show federalism in the US Constitution, as it shows a combination of federal and state governments.

So, C is the correct answer.