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
[{'content': 'Lacunar variant Reed Sternberg cells are Characteristic of \nSelect and explain. \nA. Nodular Sclerosis type, B. Lymphocyte-Rich type, C. Lymphocyte depletion type, D. Lymphocyte predominance type', 'role': 'user'}, {'content': 'Answer: A \nExplanation: SubtypeReed Sternberg cellsNodular SclerosisLacunar variantLymphocyte-richMononuclear variantsLymphocyte depletionReticular variantLymphocyte predominanceL&H (lymphocytic and histiocytic)Ref: Robbins and Cotran Pathologic Basis of Disease; 9th edition; Chapter 11; Diseases of White Blood Cells, Lymph Nodes, Spleen, and Thymus; Page no: 609', 'role': 'assistant'}]