William and katherine both earned a b on the same science test, but william actually ranked ahead of katherine on the test. william most likely ranked higher because the teacher used a

answer; code of federal regulations;

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.