What is a primary feature of the National FFA Camp?

The primary feature of the National FFA Camp being founded in Washington, DC in 1939 is significant because it highlights the historical roots of the camp and its connection to the larger FFA (Future Farmers of America) organization. This establishment year reflects the organization's longstanding dedication to agricultural education and leadership development for youth, which remains a central mission today.

While the camp may have other aspects, such as being available for students or run by local chapters, the founding history gives it a unique identity and emphasizes its importance as a national initiative. It captures the essence of FFA's commitment to agriculture and community building, making the founding date a key characteristic of the camp. The other options may not accurately represent the camp's features or purpose, focusing too narrowly on aspects like general availability or specific management topics.