Hello there ^ _ ^
I believe the answer is : A - Evolution
Good luck!
Answer:
Cetaceans are mammals that have adapted to aquatic life and live exclusively in the water. The term Cetacea in biological terms means whale or (originally) large sea animal. There are three types of marine mammals that compose the cetacean species which include whales, dolphins and porpoises.
Explanation:
Human Gene Therapy.
(It is all of these)
A. includes the insertion of genetic material into human cells for the treatment of a genetic disease.
B. Has been used for treatment of children who have severe combined immunodeficiency.
C. Has been used in a trial to treat familial hypercholesterolemia.
Can be injected by IV, shots that go into the vein to carry the gene all the way around the human body system, and possibly pills (possibly).