Is the PGA of America recognized as the world's largest working sports organization?

The PGA of America is indeed recognized as the world's largest working sports organization, primarily due to its extensive membership base and the scope of its operations. With tens of thousands of professionals, it serves a wide variety of functions including teaching, coaching, and managing golf facilities. This broad engagement in the sport allows it to have a significant impact not just in the United States but globally, further solidifying its status. The organization's comprehensive resources, educational programs, and tournaments also contribute to its prominence in the sports world, affirming its position at the forefront of professional golf.

The other options do not accurately reflect the PGA of America's status. For example, suggesting it is only recognized in the US undermines its global influence, while stating it depends on the definition introduces ambiguity that does not align with the straightforward acknowledgment of its leadership role in the golfing community.