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
Malignant otitis externa is - 
Select and explain. 
A. Malignancy of external ear, B. Caused by hemophilus influenzae, C. Blackish mass of aspergillus, D. Pseudomonas infection in diabetic patient
D: Pseudomonas infection in diabetic patient
Answer: D: Pseudomonas infection in diabetic patient 
Explanation: None