Question

which are classified as performance - enhancing drugs? select three options. vitamins protein powders steroid precursors anabolic steroids human growth hormone

Explanation:

Performance - enhancing drugs are substances that improve athletic performance. Steroid precursors can be converted into steroids in the body, anabolic steroids promote muscle growth, and human growth hormone can increase muscle mass and strength. Vitamins and protein powders are nutritional supplements, not performance - enhancing drugs in the same category as the others.

Answer:

C. steroid precursors
D. anabolic steroids
E. human growth hormone