How does a ribosome know how to make protein?

AThe nucleus contains the instructions and passes those instruction on to the ribosomes

BThe RNA brings a message from outside of the cell to produce protein-based DNA

CThe necessary enzymes travel along the plasma membrane and are decoded in the ribosomes

DThe instructions come through a transmembrane protein and travel to the ribosome.

Which provides to a eukaryotic cell about living and growing?

ADNA

BPlasmids

CMitochondria

DNucleus

PLEASE HELP ME!