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: Dental
Osteoblasts appear basic gram staining due to: 
Select and explain. 
A. Increased ribonucleic acid, B. Acidic ground substance, C. Increased mitochondria, D. Presence of basic ground substance
A: Increased ribonucleic acid
Answer: A: Increased ribonucleic acid 
Explanation: None