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: Gynaecology & Obstetrics
Which of the following is the most radiosensitive ovarian tumors : 
Select and explain. 
A. Dysgerminoma, B. Dermoid cyst, C. Serous cystadenoma, D. Endodermal sinus tumour
A: Dysgerminoma
Answer: A: Dysgerminoma 
Explanation: Ans. is a i.e. Dysgerminoma Dysgerminoma is most radiosensitive tumour not only of ovary but of whole body.