How did the work of Sigmund Freud affect the lives of ordinary people in the 20th century?

The work of Sigmund Freud affected the lives of ordinary people in the 20th century in that it encouraged people to search for the hidden reasons for their actions. Sigmund Freud (1856-1939) was a psychologist that used the psychoanalysis technique to understand the unconscious part of the human that influences its behavior.

#2 the answer is d

#3 the answer is a

#4 the answer is b

the noble might have thought that the system was far because they had lot of things and riches and the serf would have thought that the feudal system was un fair because of the way they were treated.