Officials were chosen based on their ability to serve the First Emperor and obey him. To promote obedience, punishment was severe. Even the First Emperor's own son, who warned him not to kill
scholars, was demoted and sent to the north to build the Great Wall — notorious as a place where
people were likely to die.

excerpt from Qin Shi Huang — First Emperor of the Qin Dynasty by Hinsbergh, Gavin Van.

The above source shows evidence for which of the following philosophies on early Imperial Chinese history?

ADaoism

BLegalism

CMohism

DConfucianism