Social order. Beneath the emperor, there were four main social classes in ancient China. These four classes were nobles and officials, peasants, artisans and merchants.
The correct answer is B
Congress has two houses: the senate and the house of representatives. The Answer A, president pro tempore of the Senate is wrong- this person is not even the most important person in senate, only the second most important. In fact the highest person in the senate is the Vice President of the United States. On the other hand, the highest person in the house of representatives is the Speaker of the House. So we know it's either B or D. Now, the question is tricky, as neither of the chambers of the senate is officially more importnat. Additionally vice-president is higher in the line to the succession to the President's office.
However, it is usually assumed that the Speaker represents the Congress as a whole, and that's why i'd go with B.
They are all fighting for personal rights.
Expressed/enumerated/delegated powers: powers of the federal government that are specifically described in the constitution.
Implied powers: powers of the government that aren’t specifically stated in the constitution but assumed to exist because they’re necessary.
Inherent powers: powers that the president and congress need in order to do their job. These powers aren’t stated in the constitution.
Reserved powers: powers of the state government.