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: Biochemistry
Mucin is a? 
Select and explain. 
A. Nucleoprotein, B. Glycoprotein, C. Phosphoprotein, D. Chromoprotein
B: Glycoprotein
Answer: B: Glycoprotein 
Explanation: None