Which Is an Example of Gene Therapy

Multiple Choice

Which is an example of gene therapy?

A) replacing a failing heart with a new heart from a genetically matched donor
B) injecting human factor VIII protein into hemophiliacs with a defective factor VIII gene
C) infecting a cystic fibrosis patient with a virus carrying a working copy of the cystic fibrosis gene
D) providing therapeutic drugs to a patient experiencing high blood pressure