This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Proteins and Amino Acids, Subject name: Biochemistry
Proteins are sorted by: 
Select and explain. 
A. Golgi bodies, B. Mitochondria, C. Ribosomes, D. Nuclear membrane
A: Golgi bodies
Answer: A: Golgi bodies 
Explanation: Ans. A. Golgi bodiesFunctions of Golgi bodiesO-Glycosylation of proteinsProtein sortingProcessing of oligosaccharide chains of Glycoproteins