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
The protein rich in basic amino acids, which functions in the packaging of DNA in chromosomes, is: 
Select and explain. 
A. Histone, B. Collagen, C. Hyaluronic acid binding protein, D. Fibrinogen
A: Histone
Answer: A: Histone 
Explanation: None