From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences: Tests revealed that...

Answer Details

The correct answer is "drugs". In the context of sports and athletics, the term "performance-enhancing" refers to substances that are used to improve an athlete's physical abilities beyond what is naturally possible. The most common types of performance-enhancing substances are drugs such as anabolic steroids, which increase muscle mass and strength. While vitamins and supplements may also be used by athletes, they are not typically considered performance-enhancing substances. "Tablets" and "capsules" refer to forms of medication or supplements and do not necessarily indicate the substance's purpose or effect. Therefore, the best answer is "drugs".