This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
Amyloid (AA) originates from - 
Select and explain. 
A. RBC, B. Plasma cell, C. Reticulo-endothelial cell, D. Lymphocytes
C: Reticulo-endothelial cell
Answer: C: Reticulo-endothelial cell 
Explanation: Answer is option 3 Amyloidosis: origin from fixed periodic acid-Schiff positive reticuloendothelial cells in loco and basic factors in pathogenesis. httpp://www.ncbi.nlm.nih.gov.in