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: Anatomy
Which of the following is present in cailage but not in bone tissue ? 
Select and explain. 
A. Type 1 collagen, B. Blood, C. Nerves, D. Chondroitin sulfate
D: Chondroitin sulfate
Answer: D: Chondroitin sulfate 
Explanation: Ans. is 'd' i.e., Chondroitin sulfate