Final answer:
The necessary and proper clause, also known as the elastic clause, has expanded rather than limited the power of the national government, making the correct answer to the question false.
Step-by-step explanation:
The question pertaining to the necessary and proper clause and its effect on the power of the national government can be answered as false. The necessary and proper clause, often referred to as the elastic clause, is found in Article I, Section 8 of the United States Constitution. Rather than limiting, it has allowed Congress to exercise powers not explicitly listed in the Constitution, provided they are in pursuit of its expressed powers. This means that over time, the ability of the national government to act has been expanded rather than reduced.