This table shows how the levels of classification have changed with each major scientist. Which number belongs in the space labeled X? 5 7 8 10

so you know what happened be fore you were alive

explanation:

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.

well this isn't a question but if you are asking if it is true or false it is, true.