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': "Predisposing features for germ cell tumour-a) Cryptorchidismb) Testicular feminising syndromec) Klinefelter's syndromed) Smokinge) Right side more common than Left side \nSelect and explain. \nA. bcde, B. abcd, C. abce, D. abde", 'role': 'user'}, {'content': "Answer: C \nExplanation: The predisposing factor of germ cell tumors of testes are :\n\n\nCryptorchidism\nTesticular feminisation syndrome\nKlinefelter syndrome\nExcess 12P copy number either in the term of i( 12P) or increased 12P an aberranthy banded marker chromosome.\n\n\nIn most large testicular tumour approximately 10% associated with Cryptorchidism.\nAbdominal cryptorchid testes are higher risk than inguinal cryptorchid testes.\nEarly orchiopexy before puberty reduced the risk of GCT.\nKlinefeleter's syndrome is associated with mediastinal GCT.\n\nAn ischromosome of short arm of chromosome 12. is pathognomic of GCT in all histological types", 'role': 'assistant'}]