Which of the Following Is True About Ribosomes

Which of the following is true about ribosomes?

A) Prokaryotic ribosomes have a lower overall mass and diameter than eukaryotic ribosomes.
B) Prokaryotic ribosomes are also easily differentiated from eukaryotic ribosomes based on chemical composition.
C) Ribosomes are organelles made of RNA and carbohydrates.
D) Ribosomes build amino acids by linking together nucleic acids.
E) Antibiotics often take advantage of functional differences between prokaryotic and eukaryotic ribosomes.