The meaning of overlord is a person of great power and authority.
Acting president takes over the president
I believe this is c) ruled by the people. However a direct democracy is ruled by the majority, but this is still the people. A republic is ruled by the people through representatives.
Many printers continue to publish and sell pamphlets with near impunity
The answer is Republicanism
Republicanism- the principles or policies of the Republican party
Hope this helps!