Answer: Congress of Vienna was a conservative answer to everything new what revolution brought.
Explanation: Congress of Vienna initated a closer collaboration between European governments to suppress all possible focal points of revolutionary events. A good example is a so-called "three liberal years" (1820-23) in Spain. At that time Spanish liberals forced the king Ferdinand VII to rule as a constitutional monarch. Other European monarchies organized a congress which opted for military invasion. Liberals were defeated and absolute rule of Ferdinand VII was re-established.
C water created fertile soil and other agricultural advantages
The US navy was successful in driving back the Japanese forces in the Pacific was because the US was able to replace ships, airplanes, and soldiers faster than Japan could.
I think the person above is right it is A. Hope this helps