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
According to Wolffs law: 
Select and explain. 
A. Human teeth drift mesially as interproximal wear occurs, B. Pressure causes bone resorption, C. The optimal level of force for moving teeth is 10 to 200 grams, D. Bone trabeculae Line up in response to mechanical stresses
D: Bone trabeculae Line up in response to mechanical stresses
Answer: D: Bone trabeculae Line up in response to mechanical stresses 
Explanation: None