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: Anatomy
[{'content': 'CD10 is seen in: \nSelect and explain. \nA. ALL, B. CLL, C. GCL, D. CML', 'role': 'user'}, {'content': 'Answer: A \nExplanation: CD10 is called as acute lymphoblastic leukemic antigen or CALLA. It is seen in acute lymphoid leukemia.(ref Robbins 8/e p602, 7/e p670)', 'role': 'assistant'}]