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
Discharging sinus is seen in – 
Select and explain. 
A. Syphilis, B. Herpes, C. Actinomycosis, D. Molluscum contagiosum
C: Actinomycosis
Answer: C: Actinomycosis 
Explanation: None