Answer: d is the answer
Explanation becsaue it is
The synthesis of membrane proteins is completed in both the smooth endo retic for the lipid tails and the rough endo retic for the rest of the phospholipid structure. Proteins are transported to the golgi apparatus in vesicles (membranous sacs) and bud off of the golgi apparatus in vesicles as well. The vesicle then fuses with the membrane and releases its contents.
The closest answer to this problem is Tertiary. Protein are large biomolecules made up of individual single amino acids. It is the Tertiary structure arrangement of protein that would give the functionality and shape of protein when attached to the other molecule.