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: Pathology
OsteoscLerosis of bone occurs due to 
Select and explain. 
A. Decreased host resistance, B. Increase in the virulence of organisms causes infection, C. Increased host response, D. Occurs in immunocompromised patients
C: Increased host response
Answer: C: Increased host response 
Explanation: None