<prompt> Which of the following is a germ cell tumor?Brenner tumorGranulosa cell tumorLeydig cell tumorsYolk sac tumor  <response>: Germ cell tumorsDysgerminomaEndodermal sinus tumor Embryonal carcinomaPolyembryomaChoriocarcinoma Immature teratoma Mature dermoid cyst with malignant transformationMonodermal and highly specializedStruma ovariiCarcinoidOthersReference: Novaks gynecology; 14th edition; Chapter 35; Uterine cancer 