Which of the Following Is a Valid Scientific Concern About

Which of the following is a valid scientific concern about the environment and transgenic crops?

A) Pollen from transgenic crops could carry the recombinant genes to wild relatives, with unpredictable consequences.
B) Wild animals might eat the transgenic crop and become genetically mutated.
C) Transgenic crops could escape cultivation and become "superweeds" that are incapable of being destroyed.
D) The toxic products of the modified genes would be released to the environment when the plants die, resulting in drastic die-offs of local wildlife.