Different Glycoproteins Can Have a Diverse Array of Oligosaccharides

Different glycoproteins can have a diverse array of oligosaccharides.Which of the statements below about this diversity is TRUE?

A) Extensive modification of oligosaccharides occurs in the extracellular space.
B) Different oligosaccharides are covalently linked to proteins in the ER and the Golgi.
C) A diversity of oligosaccharyl transferases recognizes specific protein sequences, resulting in the linkage of a variety of oligosaccharides to proteins.
D) Oligosaccharide diversity comes from modifications that occur in the ER and the Golgi of the 14-sugar oligosaccharide added to the protein in the ER.