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': 'Which one of the following is an impoant tumour marker in the diagnosis of endodermal sinus tumour : Which one of the following is an impoant tumour marker in the diagnosis of endodermal sinus tu? mour : \nSelect and explain. \nA. HCG, B. CA - 125, C. LDH, D. Alpha foeto protein', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Alpha foeto protein', 'role': 'assistant'}]