<prompt> MC ovarian tumor in a 15-year-old female:Sex cord tumorMetastatic tumorGerm cell tumorEpithelial tumor  <response>: Ans. is c, i.e. Germ cell Tumor.Ref: Williams Gynae 3rded, p761GCT- These tumors are the most common ovarian malignancy diagnosed during childhood and adolescence, although only 1 of all ovarian cancers develop in these age groups. At age 20, however, the incidence of epithelial ovarian cancer begins to rise exceeds that of germ cell tumors. - Ref Williams Gynae 3rded, p761 