Answer:
A cabinet member advises the president on matters of National defense
Explanation:
A senator is not an appointee by the president, but he/she is been Elected by the populace while a federal judge is been recommended by the President to defend the constitution. an ambassador also been appointed by the President represents the interest of the country especially in another country and doesn't advice the president on matters concerning the National defense .
An executive cabinet member advises the president on many matters including National defense. the particular cabinet member who is charged with this responsibility is the National security adviser ( NSA ) and also the chief of defense staff
