What are "Ribosomes "? a. a small organelle, made of RNA and protein and found in both prokaryotic and
eukaryotic cells, that forms proteins from amino acids

b. a storage organelle of the cell. Some vacuoles help transport food molecules
across a cell membrane.

c. the structure that forms the surface of a cell separating its contents from the
outside world

d. a type of cell that has a membrane-bound nucleus and membrane-bound
organelles