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
All of the following diseases have a consistent symptom of tinnitus, except - 
Select and explain. 
A. Meniere's disease, B. CSOM, C. Otosclerosis, D. Mastoiditis
D: Mastoiditis
Answer: D: Mastoiditis 
Explanation: None