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: Pathology
[{'content': 'Serum alpha feto protein level is raised in -a) Teratomab) Seminomac) Endodermal sinus tumord) HCG \nSelect and explain. \nA. a, B. bc, C. ad, D. ac', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Serum alpha feto proetin level is elevated in non seminomatous testicular tumors.\nNon seminomatous testicular tumors include\n\n\nYolk sac or endodermal sinus tumor\nEmbryonal carcinoma\nTeratomas\n\n\nIt is never elevated in seminomas. Presence of alpha feto protein rules out the diagnosis of seminomas.', 'role': 'assistant'}]