In Order for Gene Therapy to Be Permanent in the Patient

In order for gene therapy to be permanent in the patient being treated,

A) the defective gene must first be removed from all somatic cells.
B) the normal gene must be added to the germ-line cells.
C) the normal gene must first be treated with UV radiation to ensure noninfectivity.
D) the normal gene must be transferred to somatic cells that can continuously multiply.