Type 1 Diabetes Results from a Loss of Insulin Production

Type 1 diabetes results from a loss of insulin production from the pancreas.People with diabetes take recombinant human insulin expressed in bacteria.How would you cure the disease instead of treating it?

A) Making the insulin gene in a genetically modified organism would allow for a cure.
B) Replacing the defective insulin gene in a patient through gene therapy would allow for a cure.
C) Making the insulin gene in hamster cells would allow for a cure.
D) There is no way to alter the genetic information to cure a disease caused by a nonfunctional gene.
E) Gene therapy would replace the gene in a cell culture or in a genetically modified organism,but it will not cure the disease.