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
Gonadotropins are : 
Select and explain. 
A. Proteins, B. Glycoproteins, C. Phospholipids, D. Polysaccharides
B: Glycoproteins
Answer: B: Glycoproteins 
Explanation: Glycoproteins