According to the law, which actions fall under offences concerning prohibited plants?

The correct answer encompasses a range of actions that are specifically defined as offences concerning prohibited plants within the law. Cultivating, supplying, or possessing a prohibited plant captures the comprehensive nature of the legal restrictions surrounding these substances.

Cultivating refers to the act of growing plants that are classified as prohibited, which is a direct violation of laws aimed at controlling certain types of flora that may be deemed dangerous or illegal. Supplying encompasses providing these plants to others, which contributes to the distribution and potential misuse of prohibited plants. Possessing a prohibited plant signifies that an individual has control over the illegal substance, regardless of whether they are actively using, intending to use, or distributing it.

Together, these actions reflect a legislative intent to restrict not just the trade but also the cultivation and possession of prohibited plants, highlighting the seriousness of these offences. This answer captures the essence of the legal framework aimed at regulating potentially harmful substances in a more thorough manner than the other options listed.