Which Statement About Selenium Levels in the Body Is Accurate?​

Which statement about selenium levels in the body is accurate?​

A) Men with high blood levels of selenium from taking supplements have decreased cancer risk.
B) Many healthy,well-fed people have a hidden selenium deficiency.
C) ​There is no danger of toxicity when taking selenium supplements.
D) ​It is difficult to obtain enough selenium from foods in the diet.
E) ​Selenium works with a group of enzymes to protect body compounds from oxidative damage.