Read the paragraph given below and answer the question.

If a person is born with a hereditary disease, can a corrective therapy be taken for such a disease? Gene therapy is an attempt to do this. Gene therapy is a collection of methods that allows correction of a gene defect that has been diagnosed in a child/embryo. Here genes are inserted into a person's cells and tissues to treat disease.

ADA deficiency can be permanently cured by

A. Bone Marrow Transplant
B. Gene therapy
C. Enzyme replacement therapy
D. DNA recombination

Choose the correct answer from the options given below:

B only

The correct answer is Option (2) → B only