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: Pharmacology
Common dose dependant side effects of ethambutol is : 
Select and explain. 
A. Red-urine, B. Optic neuritis, C. Nephropathy, D. Peripheral neuropathy
B: Optic neuritis
Answer: B: Optic neuritis 
Explanation: None