Which of the following organelles are involved in making, transporting, or processing proteins in the cell?
I. Mitochondria and chloroplasts
II. The nucleus and ribosomes
III. Rough ER, Vesicles and the Golgi Apparatus
IV. Smooth ER and Lysosomes
A. I and II only
B. I, II, and III only
C. II and III only
D. I, II, III, and IV