This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hallmarks of Cancer, Subject name: Pathology
Carcinoma ovary marker is- 
Select and explain. 
A. CA 19-9, B. CD 99, C. CD 34, D. CA 125
D: CA 125
Answer: D: CA 125 
Explanation: Ans is 'd' i.e.; CA125 Tumor MarkersCancerHormones o Human chorionic gonadotropino Gestational trophoblastic disease, gonadal germ cell tumoro Calcitonino Medullary cancer of the thyroido Catecholamineso Pheochromocytomao Gastrino Gastrinoma (pancreatic neuroendocrine tumor)Oncofetal Antigens o Alphafetoproteino Hepatocellular carcinoma, gonadal germ cell tumoro Carcinoembryonic antigeno Adenocarcinomas of the colon, pancreas, lung, breast, ovaryEnzymes o Prostatic acid phosphataseo Prostate cancero Neuron-specific enolase & chromogranin Ao Small cell cancer of the lung, neuroblastomao Lactate dehydrogenaseo Lymphoma, Ewing's sarcomaTumor Associated Proteins o Prostatic-specific antigenProstate cancero Monoclonal immunoglobulinMyelomao CA- 125Ovarian cancero CA 19-9Colon, pancreatic, breast cancero CA - 15-3Breast cancero CA 72-4Ovarian, pancreatic & gastric Ca.o CA 27.29 &CA 15-3Breast cancero CD 30Hodgkin's disease, anaplastic large cell lymphomao CD 25Hairy cell leukemia, adult T cell leukemia / lymphomao CD-34Alveolar soft part sarcomao b 2 - MicroglobulinMultiple myelomao S-100, HMB-45, TA-90Malignant melanomao NMP-22Urinary bladder Cao CD-99Ewing \s sarcoma