What information must be included on a poison label according to regulations?

The inclusion of the name of the article, the word "POISON," and the name and address of the seller on a poison label is mandated by regulations to ensure public safety. This labeling requirement serves several critical purposes. Firstly, it clearly identifies the hazardous nature of the substance by prominently displaying the word "POISON," which alerts consumers and handlers to the serious risks associated with the product. Secondly, including the name of the article helps consumers recognize the specific substance they are dealing with, which is vital in preventing accidental ingestion or misuse.

Moreover, the label must feature the name and address of the seller to provide traceability and accountability. In case of any incidents or adverse reactions involving the poison, this information allows regulatory bodies or emergency services to quickly identify where the product originated. By having this basic but essential information, regulations aim to mitigate the risks of poisoning and improve overall public health safety.

In this context, the other options do not adequately address the specific legal requirements for poison labeling as stipulated by regulations. The remaining choices focus on information that, while potentially relevant in different contexts, do not fulfill the particular obligations set forth for labeling poisons.