Four reasons that the US switched from isolationism to imperialism were as follows economic, social, political and lastly religious motives.
Explanation:
Economy was the main cause that lead to imperialism , Americans understood that new markets are required for the export purpose. Second cause was social and moral motives that is the Americans understood that western ideas should be circulated mainly they circulated ideas related to medicine, law as well as religion. Political was also important cause that lead to imperialism that competition took place so that new colonies can be formed.
The answer is D.
Factor production that could be changed during particular period is called Variable Factor of Productions.
Basically, factor of productions is divided to fixed and variable factor.
FIxed factors are the one that will always stay the same no matter how many products you made. For example electricity cost, building rent, etc
The variable factors differ depend on how product you produce, such as raw material.
<span> Pizarro seized the Inca emperor,Atahualpa,massacred the senior Inca nobility,extracted a huge ransom in gold and silver for Atahualpa,then murdered him.Pizarro then went on to conquer an effectively leaderless Inca empire.
Much the same with Cortes and the Aztecs - initially pretending to be friendly,Cortes seized the Aztec emperor,extracted a huge ransom for him before murdering him and,although forced to retreat shortly after by superior numbers,soon returned with Mexican native allies to destroy the Aztec empire and conquer it for Spain.
Cortes' conquest was much harder fought than that of Pizarro,but basically their interaction with the natives was the same - kidnap th leader,extort a ransom,kill the hostage anyway,then attack and conquer their people.</span>