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
Which of the following periapical conditions is often associated with a vital pulp? 
Select and explain. 
A. Apical cyst, B. Apical scar, C. Condensing osteitis, D. Chronic apical periodontitis
C: Condensing osteitis
Answer: C: Condensing osteitis 
Explanation: None