Think about what it means to "express" something. Which powers—delegated or implied-could also be referred to as expressed powers? Why?

answer; (regions)

the secretary of defense is the principal defense policy advisor to the president. under the direction of the president, the secretary exercises authority, direction, and control over the department of defense.

as you did not provide any choices for me to choose from to give you a direct answer, this is the only information i can provide.