This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Basics of Psychiatry, Subject name: Psychiatry
All are true about obsessions except: 
Select and explain. 
A. Obsession persists despite resistance by the patient, B. Obsessions are Ego dystonic, C. Disorder of thought content, D. Can be seen in schizophrenia
C: Disorder of thought content
Answer: C: Disorder of thought content 
Explanation: This question is slightly controversial. Strictly speaking, obsessions are disorders of "possession" of thought and not "content" of thought, although some books wrongly tend to club obsessions as a pa of content of thought. This question is from the topic of "psychopathology" for which the standard book is Fish's clinical psychopathology, which clearly says that "obsessions are disturbances of 'possession' of thought. Also remember that obsessions can be seen in schizophrenia. Option A and B are of course true.