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
Which of the following is a non - selective MAO inhibitor? 
Select and explain. 
A. Moclobemide, B. Rasagiline, C. Selegiline, D. Isocarboxazid
D: Isocarboxazid
Answer: D: Isocarboxazid 
Explanation: Reversible inhibitors of MAO - A :  Moclobemide.
Selective  inhibitors of MAO - B :  Selegiline, Rasagiline.
Non - selective inhibitors of MAO : Isocarboxazid, Phenelzine.