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
False about HCG are all except : 
Select and explain. 
A. Lipoprotein, B. Radioimmunoassay > 6 days of conception, C. Secreted by corpus luteum, D. Non specific a and specific b - subunit
D: Non specific a and specific b - subunit
Answer: D: Non specific a and specific b - subunit 
Explanation: Non specific a and specific b - subunit