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
Freud's theory of dream includes all except 
Select and explain. 
A. Displacement, B. Condensation, C. Symbolisation, D. Correlation
D: Correlation
Answer: D: Correlation 
Explanation: Condensation: Several unconscious desires are combined in a single image and manifests as a dream.
Displacement: Displacement of impulse from an original aspect to a substitute object

           Example: A person having unconscious impulse of aggresion towards his father, sees himself hitting a dog in his dream.

Symbolisation: A strong emotion towards, an individual is symbolized as a simple image.