This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
Predominantly sensory neuropathy is caused by 
Select and explain. 
A. Cisplatin, B. Pyridoxine excess, C. Suramin, D. Diptheria
B: Pyridoxine excess
Answer: B: Pyridoxine excess 
Explanation: Pyridoxine is an essential vitamin that serves as a coenzyme for transamination and decarboxylation. However, at high doses (116 mg/d), patients can develop a severe sensory neuropathy with dysesthesias and sensory ataxia. NCS reveal absent or markedly reduced SNAP amplitudes with relatively preserved CMAPs. Nerve biopsy reveals axonal loss of fiber at all diameters. Loss of dorsal root ganglion cells with subsequent degeneration of both the peripheral and central sensory tracts have been repoed in animal models.Ref: Harrison's 18/e p3463