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: Pathology
Schiller-Duval Bodies are seen in? 
Select and explain. 
A. Teratoma, B. Yolk sac tumor, C. Choriocarcinoma, D. Spermatocytic seminoma
B: Yolk sac tumor
Answer: B: Yolk sac tumor 
Explanation: Yolk sac tumor is also called Endodermal sinus tumor.