<prompt> RNA oncogenic virus is: September 2004Human papilloma virusEpstein Barr virusHuman T-cell leukemia virusHepatitis B virus  <response>: Ans. C i.e. Human T-cell leukemia virus The human T-lymphotropic virus, human T-cell lymphotropic virus, or human T-cell leukemia-lymphoma virus HTLV family of viruses are a group of human retroviruses that are known to cause a type of cancer called adult T-cell leukemialymphoma and a demyelinating disease called HTLV-1 associated myelopathytropical spastic paraparesis HAMTSP. 