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
All of the following drugs enhances bone resorption except: 
Select and explain. 
A. Prostaglandins, B. Vitamin D, C. Corticosteroids, D. Bisphosphonates
D: Bisphosphonates
Answer: D: Bisphosphonates 
Explanation: Various promoter drugs: (enhance bone resorption)

Prostaglandins
Leukotrienes
Cytokines
Vitamin D
Osteocalcin
Corticosteroids

Supressor agents: (Reduce bone resorption)

NSAIDS
Bisphosphonates (used in treatment of cancers and osteoporosis)