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
Most radiosensitive tumor among the following is 
Select and explain. 
A. Bronchogenic carcinoma, B. Parotid carcinoma, C. Dysgerminoma, D. Osteogenic sarcoma
C: Dysgerminoma
Answer: C: Dysgerminoma 
Explanation: A dysgerminoma is a type of germ cell tumor; it usually is malignant and usually occurs in the ovary.
A tumor of the identical histology but not occurring in the ovary may be described by an alternate name: seminoma in the testis or germinoma in the central nervous system or other parts of the body.