This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
[{'content': 'According to Sigmund Freud, primary process thinking is - \nSelect and explain. \nA. Illogical & Bizarre, B. Rational, C. Absent during sleep, D. Logical & unconscious', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Primary process (related to Id):- Unorganized & non-logical thinking.\nSecondary process (related to Ego):- Reality oriented, goal-directed, logical, rational, concrete and/or abstract conceptual thinking.', 'role': 'assistant'}]