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: Pathology
In occult filariasis microfilaria are present in ? 
Select and explain. 
A. Peripheral blood only, B. Peripheral lymph nodes only, C. Deep lymph nodes only, D. None
D: None
Answer: D: None 
Explanation: Ans. is 'None' In occult filariasis, microfilariae are present in deep organs and lymphatic tissue but not in blood.