Which of the following are True statements regarding the effects of GMOs on non-target species? Check all that apply.

A) There is well-documented evidence that plants genetically modified for pest resistance are harmful to non-target insect species.
B) Studies on the effects of GM pest resistance and its effects on non-target insect species are primarily focused on plants modified with Bt.
C) Some non-target insect species may benefit from the use of plants genetically modified with Bt.
D) Since studies on the effects of Bt on non-target insect species support that it is safe, studies on other types of GM pest resistance are not necessary.