Which position, appointed by the president, advises the president on matters of national defense? senator cabinet member federal judge ambassador

The position, appointed by the president, which advises the president on matters of national defense is by custom a cabinet member.

In the U.S., the Secretary of Defense is the leader and chief officer of the United States Department of Defense. The Secretary of Defense, as mentioned above, is appointed by the President with the advice and consent of the Senate, and it is by custom a member of the cabinet and a member of the National Security Council.

Furthermore, the Secretary of Defense is designated as the main assistant to the President in all maters relating to the Department of Defense.

Which position, appointed by the president, advises the president on matters of national defense?

B. cabinet member

is there multiple

answer; i believe the correct answer is (desert storm);