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
Which of the following is true about seminoma?a) It is radiosensitiveb) It arises only from cryptorchid testisc) AFP is increasedd) It is chemosensitive 
Select and explain. 
A. b, B. c, C. ad, D. ab
C: ad
Answer: C: ad 
Explanation: Seminomas are both radiosensitive & chemosensitive tumors.