What element characterizes the works from U.S. artists in the provided context?

The choice that highlights the defining element of works by U.S. artists in the specified context is the connection to contemporary issues. This aspect is significant as it emphasizes how artists respond to and engage with current social, political, and cultural topics. Contemporary issues often reflect the complexities and dynamics of modern society, allowing artists to convey messages, provoke thought, and initiate dialogue through their work.

Artists often draw from their surroundings and experiences to create works that resonate with today's audience. This engagement with contemporary themes enables their art to remain relevant and relatable, often addressing topics such as identity, social justice, and environmental concerns. It showcases the role of art as a means of commentary and activism, positioning the artist not just as a creator, but as an integral participant in shaping societal narratives.

In contrast, other choices such as classical forms, global themes, and personal narrative, while potentially relevant to certain artists, do not specifically encapsulate the unique characteristic of U.S. art that is most resonant within the context of contemporary relevance. The connection to contemporary issues is pivotal as it highlights the active role of artists in addressing and reflecting the complexities of life as it is lived today.