its B.cell wall
ribosomes are used to synthesis proteins and other components required for cells
endoplamsic reticulum is where the ribosomes are its a structure that helps to prepare the components and to bring them to the golgi body
the cell wall is only present in plants (cellulose) and fungi (chitin) and it helps plants to regulate their water intake physically
the cytoplasmis present in all cells as the medium which organelles are suspended in and in contact with
hope that helps