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: Radiology
Low dose radiotherapy is given for: 
Select and explain. 
A. Seminoma, B. Malignant melanoma, C. Osteosarcoma, D. Chondrosarcoma
A: Seminoma
Answer: A: Seminoma 
Explanation: Ans. Seminoma