Final answer:
The National Association of REALTORS® is the largest trade association in the real estate industry, which is the true statement among the given options.
Step-by-step explanation:
The National Association of REALTORS® (NAR) is a professional society representing the interests of those in the real estate industry. Among the given options, the true statement about the NAR is that it is the largest trade association in the real estate industry. Membership to NAR is not mandatory upon obtaining a state license, nor is it included as a benefit of being licensed. Furthermore, NAR is not directly funded by state licensing fees. Trade associations like the NAR tend to be non-profit organizations that promote new practices, advocate for industry interests, serve as networks for professionals, and may influence public policy in favor of their members.