The correct option is B Escherichia coli
Recombinant insulin
Recombinant insulin (humulin) is produced in Escherichia coli bacteria. It is produced by cloning genes of human A and B peptides of insulin separately in different E.coli bacteria. In the end, disulfide bonds are created in between both the peptides to form functional insulin.
Final answer:
(c) Escherichia coli