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: Medicine
Life-threatening complications of diabetes mellitus are all except - 
Select and explain. 
A. Malignant otitis externa, B. Rhinocerebral mucormycosis, C. Emphysematous pyelonephritis, D. Emphysematous appendicitis
D: Emphysematous appendicitis
Answer: D: Emphysematous appendicitis 
Explanation: None