Which drug is known for its depressant, stimulant, and hallucinatory effects?

The drug known for its depressant, stimulant, and hallucinatory effects is cannabis. Cannabis contains various compounds, primarily tetrahydrocannabinol (THC), which can produce a wide range of effects depending on the amount consumed and the individual's tolerance.

Cannabis can act as a depressant by relaxing the user and reducing anxiety in lower doses. At the same time, it can have stimulating effects, particularly at lower doses or when certain strains are used, leading to increased heart rate and heightened sensory perception. Moreover, cannabis can induce hallucinatory effects, especially at higher doses, leading to altered perceptions of reality, time, and space. This unique profile of effects sets cannabis apart from many other substances.

The other options provided have more defined and less varied effects. For instance, cocaine is primarily a stimulant that increases energy and alertness but does not have depressant or hallucinatory properties. Alcohol is mostly a depressant, with some potential for stimulating effects, but it doesn't typically induce hallucinations. Xanax is a benzodiazepine and is primarily classified as a depressant, focusing on anxiety reduction and sedation, without the other dimensions of cannabis. Thus, cannabis is the most accurate choice for a substance that embodies depressant,