Which Statement Concerning Herbal Remedies Is Accurate

Which statement concerning herbal remedies is accurate?

A) Herbal products are safe because they come from plants.
B) Composition of herbal products are closely regulated by the FDA.
C) Herbal components become more concentrated when they are made into supplements.
D) They are safe for pregnant women and children because they are natural.
E) An herbal overdose results when toxins accumulate in the kidneys.