What is a collective mark?

A collective mark refers to a trademark used by members of a collective group or organization to signify their membership and the goods or services they provide. This type of mark distinguishes the products or services offered by the members of the collective from those of non-members. The hallmark characteristic of a collective mark is that it serves as an indicator of membership, rather than highlighting individual ownership or the commercial benefits of a sole entity.

In this context, the other options describe marks that do not align with the definition of a collective mark. A mark used solely for individual commercial benefit indicates ownership by a single entity and does not relate to collective membership. A mark that acts as a guarantee of product authenticity is more akin to a certification mark, which focuses on the quality or source of goods rather than membership in an organization. Finally, a mark related to digital media does not inherently denote collective membership and is a broader category that can apply to various forms of content, not limited to trademark law. Thus, the correct choice highlights the purpose and function of a collective mark effectively.