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: Surgery
It is true about seminoma testis that -a) It commonly occurs in the 6th decadeb) An undescended testes is more liable to develop this tumourc) Histologically it resembles dysgerminoma of the ovaryd) It is radioresistant 
Select and explain. 
A. bc, B. c, C. ac, D. ad
A: bc
Answer: A: bc 
Explanation: None