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
HCG is secreted by all except- 
Select and explain. 
A. Embryonal cell cancer, B. Choriocarcinoma, C. Polyembryoma, D. Endodermal sinus tumour
D: Endodermal sinus tumour
Answer: D: Endodermal sinus tumour 
Explanation: None