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
Features of obsessive-compulsive neurosis are -a) Repetitivenessb) Irresistibilityc) Unpleasantnessd)  Poor personal care 
Select and explain. 
A. ab, B. abc, C. acd, D. bcd
B: abc
Answer: B: abc 
Explanation: Obsession is repetitive, irresistible and unpleasant (produces distress & anxiety).