This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Pathology
AML causing Gum hyperophy - 
Select and explain. 
A. M1, B. M2, C. M3, D. M4
D: M4
Answer: D: M4 
Explanation: Gum hyperophy due to leukaemic infiltration of the gingivae is a frequent finding in myelomonocytic(M4) and monocytic (M5) leukaemias. Reference textbook of Pathology 6th edition author Harsha Mohan page number 363