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: ENT
Fistula tests stimulates 
Select and explain. 
A. Lateral semicircular canal, B. Posterior semicircular canal, C. Round window, D. Anterior semicircular canal
A: Lateral semicircular canal
Answer: A: Lateral semicircular canal 
Explanation: None