Answer:
The statement that is not true is B. Article III gives the judicial branch power to enforce laws.
Article Three of the United States Constitution is about the judicial branch of the federal government, nevertheless, it does not give it the power to enforce laws. To enforce laws isn't part of the judicial branch but of the executive.
The article establishes the judiciary's structure (One Supreme Court and others inferior courts which shall be ordained by Congress), deals with its jurisdiction and its right to judicial review and defines what treason against the United States is.