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: Pathology
Lysosomal transpo defect is seen in 
Select and explain. 
A. Cystinosis, B. Goucher's disease, C. Metachromatic leukosytrophy, D. Tay Sach's disease
A: Cystinosis
Answer: A: Cystinosis 
Explanation: Answer- A. CystinosisTwo disorders are caused by a proven defect in carrier-mediated transpo of metabolites: cystinosis end the group of sialic acid storage disorders (SASD).