All of the Following Statements About Ribosomes Are Correct EXCEPT

All of the following statements about ribosomes are correct EXCEPT which one?

A) All ribosomes have two subunits, the large subunit approximately twice the size of the smaller subunit.
B) Eukaryotic cells have 80S ribosomes, and protein synthesis on these ribosomes can be inhibited by cycloheximide.
C) Prokaryotic cells have 70S ribosomes, and protein synthesis on these ribosomes can be inhibited by chloramphenicol.
D) Mitochondria have 80S ribosomes, and protein synthesis on these ribosomes can be inhibited by cycloheximide.
E) The larger subunits of all ribosomes have the enzyme peptidyl transferase which forms peptide bonds.