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
Enzyme alpha naphtyl esterase is present in ? 
Select and explain. 
A. Neutrophil, B. Eosinophil, C. Lymphocyte, D. Monocyte
D: Monocyte
Answer: D: Monocyte 
Explanation: Ans. is d i.e., Monocyte