B) Made a counterclaim.
This is because Historian B made a claim that didn't support Historian A's claim, and provided evidence against him.
The Cambodian genocide was the systematic persecution and killing of Cambodians by the Khmer Rouge under the leadership of Communist Party of Kampuchea general secretary Pol Pot
What was Pol Pot's vision for Cambodia?
As the new ruler of Cambodia, Pol Pot set about transforming the country into his vision of an agrarian utopia. The cities were evacuated, factories and schools were closed, and currency and private property was abolished.
What allows civilisation to rise is the complex way of life that came about as people began to develop urban settlements. Civilisation expand mainly through trade, war, and exploration. Those three are the things that help civilization to grow and stay for a long time.
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