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: Ophthalmology
Wernicke's hemianopic reaction is due to lesions at the level of 
Select and explain. 
A. Optic tract, B. Optic chiasma, C. Optic radiations, D. LGB
A: Optic tract
Answer: A: Optic tract 
Explanation: Lesions of optic tract.
I/L direct and C/L consensual light reflexes are absent.