What Is an Advantage of Molecular Pharming Compared to Expression

What is an advantage of molecular pharming compared to expression of mammalian proteins in bacteria?

A) molecular pharming is less complex because it does not require the use of plasmid vectors
B) molecular pharming produces fewer waste products because the protein yield is smaller than when using bacteria
C) molecular pharming is less expensive than producing proteins in bacteria
D) molecular pharming is less complex because post-translational modifications do not occur in mammals
E) proteins are more likely to function properly when expressed in mammals than when expressed in bacteria