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
Differentiating features b/w neurosis and psychosis : 
Select and explain. 
A. Insight is preserved, B. Lack of insight, C. Personality and behavior preserved, D. None
B: Lack of insight
Answer: B: Lack of insight 
Explanation: B i.e. Lack of insight