Answer:
The correct answer is letter "A": Sigmund Freud.
Step-by-step explanation:
Austrian neurologist Sigmund Freud (1856-1939) is the father of psychoanalysis. The Freudian motivation theory states -when it comes to sales and consumers- that human beings make purchases to satisfy conscious-functional needs and unconscious needs. Some of the Freudian approaches are used in marketing to study consumer behavior and preferences.