Decorative flowers have been modified, from their wild type, to modern showy versions. Agricultural crops and livestock are selectively produced to have desirable nutrition and yield. Favorite dog and cat breeds exhibit desired traits of appearance and behavior. All of these are examples of.

A) many generations of traditional breeding techniques.
B) production of transgenic organisms by traditional breeding methods.
C) how strongly the traits and breeds of transgenic organisms have changed species already.
D) changes leading to new breeds, or entire new species can only be produced with transgenic organisms.
E) All of the answer choices are correct.