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
Most malignant testicular tumour - 
Select and explain. 
A. Embryonal cell carcinoma, B. Seminoma, C. Choriocarcinoma, D. Teratoma
C: Choriocarcinoma
Answer: C: Choriocarcinoma 
Explanation: None