<prompt> Which of the following germ cell tumor is malignant ?Leydig cell tumorSeoli cell tumorSeminomaDermoid cyst  <response>: Ans. is c i.e., Seminoma o Among the given options only options c d are germ cell tumors. Seminoma is malignant while dermoid cyst is benign.Germ cell tumorso Malignant - Germinoma seminoma, dysgerminoma, embryonal carcinoma, endodermal sinus tumor yolk sac tumor, choriocarcinoma, immature teratoma.Benign - Mature teratoma, dermoid cyst. 