The Golgi complex plays a major role in post translational modification of proteins and glycosidation of lipids. In digesting proteins and carbohydrates. As energy transferring organelles. All of the above.

Golgi apparatus is the series of membranous stacks with two faces the cis face and the trans face. It plays an important role in processing proteins for secretion, containing a set of glycosylation enzymes that attach various sugar monomers to proteins as the proteins move through the apparatus. Glycosylation is a post-translational modification. Golgi also contains enzymes for glycosidation of lipids that is an addition of carbohydrates to lipids. Golgi does not involve in the digestion of proteins and carbohydrates or in energy transferring. Thus, the correct answer is option A.