Endoplasmic reticulum
I. provides additional mechanical support to the cell by dividing and fluid content of the ell into compartments.
II. Is involved in secretion, storage and packaging of materials.
III. Is found to be greatly involved in glycogen and glucose metabolism.
IV. takes part in sulphate metabolism.
A. I, II and III
B. Only III
C. I and IV
D. I and III