Question

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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 to steroids in the body, anabolic steroids increase muscle mass and strength, and human growth hormone promotes growth and repair of tissues. Vitamins and protein powders are nutritional supplements, not performance - enhancing drugs in the same category.

Answer:

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