The correct option is D Interferon
Interferon is a proteinaceous substance that can be synthetically produced by the involvement of recombinant DNA technology. One important microorganism in recombinant DNA research is Escherichia coli (E. coli). The DNA can then be forced into fresh cells of E. coli, and the bacteria will begin to produce the proteins specified by the foreign genes. Such, altered bacteria are said to have been transformed. Therapeutic protein an interferon is produced. Interferon is currently used against certain types of cancers and for certain skin conditions.