A. The vice president automatically assumes the presidency.
Although it would only be until the President has recovered, the Vice President would become the Acting President as long as the President was unable to fulfill his duties.
It's when people are able to choose their own Leader and representatives in the government to Fulfill their aspiration
We won't find it in Communist or the monarchy systems where we basically just have to accept what kind of Leadership we get
The Berlin Blockade led the conflict between the USSR and
US/Western Allies as this blockade removed the railway access for the western
allies to gain access to the parts in Berlin which were under the control of
the allied forces.
The answer is The Bill of rights
John Quincy Adams is the answer