This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
NARP syndrome is a type of 
Select and explain. 
A. Mitochondrial function disorder, B. Glycogen storage disorder, C. Lysosomal storage disorder, D. Lipid storage disorder
A: Mitochondrial function disorder
Answer: A: Mitochondrial function disorder 
Explanation: Harrison's principles of internal medicine 17th edition. * Neurogenic muscular weakness with ataxia and retinitis pigmentosa is a mitochondrial disease