Some organelles, such as the endoplasmic reticulum and Golgi bodies, have a large and folded structure. What is an advantage of these organelles having a folded structure?
* A. The folding causes the cytoplasm to flow throughout cell and speeds up nutrient transport.
* B. 
Protein packaging speeds up with the increased surface area created by the folding.
* C. 
The folds trap water, carbohydrates, and proteins until the cell can digest them.
* D. 
Nutrients and gases travel along the folds until the cell uses them.