Which of the Following Best Describes the Adverse Health Risks

Which of the following best describes the adverse health risks and monitoring associated with GMOs?

A) Because transgenic organisms contain genes from a different source, they can cause allergic reactions in some people.
B) Because cisgenic organisms contain genes that have been modified to change the trait, they can cause allergic reactions in some people if they are allergic to the food in its unmodified form.
C) GMO crops must undergo rigorous testing to demonstrate they are relatively safe.
D) All of the answer choices are correct.