What legal requirement must tangible goods meet?

The legal requirement that tangible goods must meet is that they must be legal and offered for sale. This principle stems from the necessity for goods to comply with applicable laws and regulations to ensure that they can be legally sold in the marketplace. If a good is illegal, such as counterfeit products or items that violate safety regulations, it cannot be sold or distributed.

This context is essential because it emphasizes the foundational legality of a good before it can enter commerce. Only legal goods can be marketed, thereby protecting consumers from illegal or harmful products. The other options, while relevant to the quality and characteristics of goods, do not address the fundamental legal requirement regarding their legality for sale. For example, durability and long-lasting qualities, the presence of a warranty, or classification as a luxury item are aspects that may relate to consumer expectations or business practices but do not constitute a primary legal requirement.