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
A sinus associated with a periapical pathology requires: 
Select and explain. 
A. Broad spectrum antibiotics, B. RCT with excision of sinus, C. RCT with Periapical curettage, D. RCT with no treatment for sinus
D: RCT with no treatment for sinus
Answer: D: RCT with no treatment for sinus 
Explanation: None