Final answer:
Cannabis is a hallucinogen with psychoactive properties that is derived from plants. It is not legal worldwide and does possess medicinal properties, contrary to the other options in the multiple-choice question.
Step-by-step explanation:
The correct answer to the multiple-choice question about cannabis is 'C. It is a hallucinogen.' Cannabis has psychoactive properties that can alter perception, mood, and consciousness, which are characteristic effects of a hallucinogen. However, it is key to note that the categorization of cannabis can be complex, as it also has depressant and stimulant-like effects, depending on the dose and individual response. Cannabis is indeed derived from plants, specifically the Cannabis sativa or Cannabis indica species. Furthermore, it is not legal worldwide, as cannabis legality varies by country and, in some places like the United States, by state. Each jurisdiction may have different laws regarding recreational and medicinal use. Lastly, cannabis does have medicinal properties, which is recognized in various parts of the world where it is prescribed for conditions such as chronic pain, glaucoma, and to alleviate side effects of chemotherapy.