A patient aged 65 years, is diagnosed to have severe aplastic anemia. HLA compatible sibling is available. The best option of treatment is -: (A) Anti-thymocyte globulin followed by cyclosporine, (B) A conventional bone marrow transplantation from the HLA identical sibling, (C) A non-myeloablative bone marrow transplantation from the HLA identical sibling, (D) Cyclosporine
Answer is A. None