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
CD-10 is seen in- 
Select and explain. 
A. ALL, B. CLL, C. HCL, D. CML
A: ALL
Answer: A: ALL 
Explanation: In acute lymphoblastic leukaemia, immunophenotyping pre B cell type: typically positive for pan-B cell markers CD19,CD10,CD9a. Reference textbook of Pathology 7th edition author Harsha Mohan page number 354