This is a tough question, So, selective breeding is like chickens and cows they are bred just to produce cows-milk and chickens-eggs. Gene therapy doesn’t even sound appetizing or good, but I think it’s like altering genes and just creating chaos. Cloning is just copying and making an exact version. GMO is genetically modified organisms, which is what they’ve been doing to vegetation by making them bigger. So inbreeding is like incest( when two people with almost the exact same genes mate and have a child) except it’s mainly done on animals. I think the closest one would be selective breeding. I’m sorry if I’m wrong I try my hardest at gathering information with only a few minutes.