B is the correct answer.
In Marbury v. Madison, Chief Justice Marshall developed a doctrine that is commonly known as Judicial Review.
Judicial Review gives the Supreme Court the right/obligation/duty to hear cases about the actions of the executive or legislative branch and to make a determination about the constitutionality of the executive or legislative branches' actions
The answer to your question would be B.) complex landscapes, you're welcome <3
The Molotov Plan was the system created by the Soviet Union in 1947 in order to provide aid to rebuild the countries in Eastern Europe that were politically and economically aligned to the Soviet Union.