From that list, the one that is <em>not </em>a responsibility of a Congressperson is C. working with the Supreme Court to interpret the laws they create. A Congressperson's main responsibility is relaying the concerns and casting votes of and for their respective district. The separation of powers means that members of Legislature need not be in direct contact with members of the Judicial branch.
The answer to this is federalism
<span>either to unite all Germans together in one country or destroy the treaty of Versailles</span>
A political map
Hope this helps and Please mark Brainliest