Which of the following actions would you not take if you were in a burning building?

If caught in burning building you should not use an elevator to evacuate because an elevator shaft provides a natural chimney. As such it can quickly fill with smoke. Fire can short-circuit the elevator call button on the fire floor and therefore cause the elevator to stop at that floor. Also, fire can cause power loss in the entire building which would also lead to being stuck in an elevator.

delegated (sometimes called enumerated or expressed) powers are specifically granted to the federal government in article i, section 8 of the constitution. this includes the power to coin money, to regulate commerce, to declare war, to raise and maintain armed forces, and to establish a post office.