Which of the Following Best Explains the Inability of Bacteria

Multiple Choice

Which of the following best explains the inability of bacteria to correctly express the protein products of plasmid containing an unmodified mammalian gene?

A) prokaryotes use a different genetic code from that of eukaryotes
B) bacteria translate only mRNAs that have multiple messages
C) bacteria cannot remove eukaryotic introns
D) bacterial RNA polymerase cannot make RNA complementary to mammalian DNA