In addition to replacing the president if necessary, it's the duty of the vice president to
C. preside over the Senate
This is according to the US Constitution. The vice president can also be appointed as member of the Cabinet if decided by the president.
The best answer in that set would seem to be "compromise." I'm not sure I'd use exactly that term, but it's the best term from the set of answers given. Count Camillo di Cavour was prime minister of the Kingdom of Sardinia, serving under King Victor Emmanuel II. This was a time in history (in the 19th century) when prime ministers were starting to exercise more control of policy than the kings themselves. It was also a time of something that came to be known a "Realpolitik" (a German term), or "realistic politics." So I'd say Cavour was a political realist who chose paths of action that would benefit his overall aims, whether or not they fit some specific ideology or master plan. I suppose "compromise" would be another way of saying that, but I'd prefer to say he practiced political realism.
Answer:
When the power of authority is placed in the hands of the wealthy and influential citizens this is known as a(n) aristocracy.
Both speeches focus on the history of fighting for a cause leading up to the Civil War. The US was built on revolutionary spirit and men's lives lost for the bigger idea of freedom. The deaths of the men will mean something because the cause of the war means something.
These addresses revitalized the Union effort and reminded the men of the long history they were now a part of. They stand on the side of freedom and that will be meaningful. This dedicate brought up morale in Union forces.