Which of the following is considered an anabolic steroid?

Depo-testosterone is considered an anabolic steroid because it is a synthetic form of testosterone, a male hormone that promotes muscle and bone growth. Anabolic steroids are known for their ability to stimulate protein synthesis and increase muscle mass, which is a central feature of their classification. They are often used medically to treat conditions like hormone deficiencies, but they are also commonly misused in the realm of sports and bodybuilding for performance enhancement.

In contrast, THC, the active ingredient in marijuana, primarily affects the brain and does not have anabolic properties. Acetone is a solvent commonly used in various industrial applications and is not related to steroids or hormone functions. Amyl nitrite, used historically to treat angina, operates as a vasodilator and does not possess anabolic steroid characteristics. Therefore, Depo-testosterone stands out as the compound that fits the definition and function of an anabolic steroid.