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: Ophthalmology
Retinitis pigmentosa is associated with following except 
Select and explain. 
A. Refsum's disease, B. Hallavardian Spatz disease, C. NARP, D. Abetalipoproteinemia
B: Hallavardian Spatz disease
Answer: B: Hallavardian Spatz disease 
Explanation: Systemic diseases associated with Retinitis pigmentosa: a. Laurence Moon Biedl syndrome b. Usher's syndrome c. Cockayne's syndrome d. NARP and Neuronal ceroid lipofuscinosis e. Hallgren's syndrome f. Waardenburg syndrome, g. Bardet-Biedl syndrome h. Abetalipoproteinemia i. Kearns-Sayre syndrome j. Refsum disease k. Alpo syndrome l. Mucopolysaccharidoses (eg, Hurler syndrome, Scheie syndrome, Sanfilippo syndrome)