This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'Neonatal thymectomy leads to: \nSelect and explain. \nA. Decreased size of germinal center, B. Decreased size of paracoical areas, C. Increased antibody production, D. Increased bone marrow production of Lymphocytes', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Tissue Thymus dependent(collection of T-lymphocytes)Thymus-independent Bursa dependent (collection of B-lymphocytes)Spleen Periaerial lymphoid collectionMalpighian corpuscle in white pulpPerifollicular regionGerminal centreMantle layerLymph nodeParacoical area between follicles in coex and medullary cords in medullaCoical folliclesGerminal centresMedullary cordsThymus-dependent regions are found grossly depleted in neonatal thymectomy (ref: Ananthanarayanan 7/e p119)', 'role': 'assistant'}]