<prompt> Drug of choice for Choriocarcinoma is-NitrosoureaGemcitabineMethotrexateMelphalan  <response>: Ans. is c i.e., Methotrexate o Drug of choice for brain tumors - Nitrosoureas o Drug of choice for pancreatic Ca. - Gemcitabine o Drug of choice for choriocarcinoma - Methotrexate o Drug of choice for multiple myeloma - Melphalan 