Answer:
B. Cardinality
Explanation:
If your university has a policy that states you must take a minimum of 12 hours to be considered a full-time student and take no more than 21 hours without special permission, the 21 hours rule is referred to as <u>cardinality</u>.
Cardinality establishes a relationship between two extremes, it is used to set a limit on two extremes of an entity, it is the number of entities in a set.
I believe the answer to this question is A boyle's law
The Chief of Staff.
All of the advisers listed in your question have important roles to play, but the White House Chief of Staff is continually in contact with the President, and so would be the one more likely to have insight into the personal thoughts of the president. The Chief of Staff controls the flow of other persons into the Oval Office for time with the President. The Chief of Staff also serves as an adviser to the President and a negotiator for him with other members of the government. The Chief of Staff is the person most often at the President's side. Also, whereas Cabinet officials and the National Security Adviser advise the President on issues specific to their appointed roles, the Chief of Staff is involved in the President's planning and communication in regard to all issues of the administration.
It was harsh on their bodies and the pay wasn't that good