This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuro-Ophthalmology, Subject name: Ophthalmology
Aberrant regeneration does not occur after injury to the oculomotor nerve with which one of the following conditions? 
Select and explain. 
A. Trauma, B. Ischemia secondary to diabetes, C. Tumor compression, D. Aneurysm
B: Ischemia secondary to diabetes
Answer: B: Ischemia secondary to diabetes 
Explanation: Damage to the oculomotor nerve with trauma or compressive lesions can cause aberrant regeneration. Ischemic neuropathy does not result in aberrant regeneration.