This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
A patient presents with bloody ear discharge. Which of the following can be a possibility? 
Select and explain. 
A. Aural polyp, B. CSOM, C. Glomus tumour, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Ans. is 'd' i.e., All of the above Differential diagnosis of blood stained ear discharge :* ASOM* Acute mastoiditis* CSOM* Aural polyp* Granulations* Glomus tumor