Final answer:
The term 'interdiction' in the context of prohibiting buying drugs implies a limitation or restriction, which is a legal prohibition on certain actions, such as the purchase and distribution of controlled drugs.
Step-by-step explanation:
The term 'interdiction' in the given context refers to b) A limitation or restriction.
Interdiction implies a prohibition or a formal order against specific actions or activities. In this case, it refers to laws that create legal prohibitions on the buying and distribution of controlled substances, such as drugs.
The prohibition of intoxicating liquors in certain territories, as an example, shows how interdiction can prevent the transportation or importation of such substances.
Similarly, while certain states may allow the purchase and use of marijuana for recreational or medicinal purposes, under federal law it remains illegal, and those engaging in activities deemed legal by state law may still face federal sanctions.
This highlights the complex legal landscapes when state and federal laws diverge on the issue of substance control.