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: Orthopaedics
True statement about physis 
Select and explain. 
A. Gives tensile strength to bone, B. Metabolically active part of the bone, C. Helps in bone resorption, D. Has lowest turnover activity in the bone
B: Metabolically active part of the bone
Answer: B: Metabolically active part of the bone 
Explanation: Physis / growth plate is metabolically active part and has highest turnover in the bone.
Tensile strength to bone is given by strands of collagen.
Osteoclasts help in bone resorption.