Which of the Following Is Not a Correct Statement About

Which of the following is not a correct statement about ergogenic aids? 

A)  Some supplements may be contaminated with illegal substances not listed on the label. 
B)  The majority of ergogenic aids have research findings that support claims made on label. 
C)  When performance does improve after use of an ergogenic aid, the improvement is often due to the placebo effect. 
D)  Ergogenic ads may feature references to scientific journals to give the illusion of endorsement. 
E)  Some ergogenic aids may have little health effect on the body, while others may increase harm or put one at increased risk of death.