Arrange the following steps of gene therapy for Adenosine deaminase deficiency in sequence.

(A) Patients lymphocytes are grown in culture outside the body
(B) Functional ADA cDNA is introduced into lymphocytes using retroviral vector
(C) Lymphocytes are taken from the blood of the patient
(D) Genetically engineered lymphocytes introduced back to the patient body

Choose the correct answer from the options given below:

(C), (A), (B), (D)

The correct answer is Option (3) → (C), (A), (B), (D)