Final answer:
Product labels must include ingredients, manufacturing location, and safety precautions. Information about sales location or transportation methods generally isn't legally required. This labeling ensures consumer protection and informed purchases.
Step-by-step explanation:
Labels on products are subject to strict laws and regulations to ensure that consumers are provided with essential information. Such labels must include certain key elements. For instance, a nutrition facts label is required by law to appear on packaged foods and must display the nutrient content per serving as well as a list of ingredients. Moreover, it's not just food products that are regulated; cosmetics also fall under the purview of federal labeling requirements, ensuring that consumers are made aware of the contents and any necessary safety precautions.
When it comes to what must legally appear on a label, the choices listed in the question are not all required. Specifically, labels must include the ingredients, where the product was made, and any necessary safety precautions. Information about where the product is sold or how it was transported is typically not mandated on labels. It is essential, however, for consumers to be informed of the composition and origin of the product, as well as how to use it safely.
In summary, to comply with laws and regulations, product labels must disclose ingredients, the location where the product was manufactured, and any pertinent safety information. These requirements are designed to protect consumers by providing them with the necessary knowledge to make informed choices about the products they purchase and use.