This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
[{'content': 'All of the following are the markers for malignant germ cell tumors of ovary except : \nSelect and explain. \nA. CA - 125, B. Alpha feto protein, C. p HCG, D. LDH', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is a i.e. CA - 125', 'role': 'assistant'}]