Which medical advance involves modifying human DNA?

1. New surgeries for prostheses.
2. Transplants of major organs.
3. Genetic engineering.
4. The development of new chemical compounds for medicines.

I think #2 is correct but IDK. Plz help

3 answers

2. is wrong.

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https://www.google.com/search?source=hp&ei=He-oXaP1AcyMsQWWsJroDA&q=medical+advance+involves+modifying+human+DNA&oq=medical+advance+involves+modifying+human+DNA&gs_l=psy-ab.3..0i22i30.4112.4112..5854...0.0..0.235.352.0j1j1......0....2j1..gws-wiz.....6..0i362i308i154i357.6q4iPUZZyUg&ved=0ahUKEwjj99LUr6TlAhVMRqwKHRaYBs0Q4dUDCAg&uact=5
Thanks Ms.Sue
I Think its C.