Which Are Advantages of Using Recombinant DNA Technology When Compared

Which are advantages of using recombinant DNA technology when compared with the gamma garden method of detecting favorably mutated crop varieties? (Select all correct choices)

A) Recombinant DNA technology does not produce radioactive plants while gamma gardens did.
B) Recombinant DNA technology is not accompanied by the risk of plant or animal exposure to radioactive isotopes while gamma gardens presented that potential danger.
C) Recombinant DNA technology can produce targeted gene alterations which gamma garden mutations were randomly accumulated by plants.
D) Recombinant DNA technology is slower to produce mutant plants, allowing for more deliberate study of their characteristics.