All of the following statements are correct regarding defensins EXCEPT that

A) they are produced by skin, GI-tract, and lung cells for defense when stimulated.
B) they form channels that destroy bacterial cytoplasmic membranes, ultimately killing the cell.
C) peptides must bind the negatively charged outer membrane lipopolysacccharides.
D) like antibodies, they are highly specific in pathogen neutralization.
E) variation in defensins produced by different animals partially explains the varying susceptibility of hosts to pathogens.