What is one legal requirement for a trademark?

A trademark must be unique and identifiable because it serves to distinguish the goods or services of one entity from those of others in the marketplace. This uniqueness helps prevent confusion among consumers and establishes brand identity, which is critical for maintaining a strong business presence. The legal framework surrounding trademarks is focused on the protection of these unique identifiers to ensure that companies can build and maintain their reputations without the risk of others misappropriating their branding.

The other options do not align with the fundamental requirements of trademark law. For example, while it may be beneficial for a trademark to be easy to pronounce, there is no legal stipulation requiring this characteristic. Similarly, trademarks do not need to be registered in every state, as federal registration is typically sufficient for legal protection across the United States. Lastly, including the word "trademark" in the name is not a legal requirement for protection; the distinctiveness of the mark is what primarily matters.