Which of the following is NOT a source of ECSA fundraising?

The correct answer highlights that sponsorships are indeed a common source of fundraising for organizations like the ECSA (Equestrian Competition and Sports Association), while the question seeks the option that does not typically fall under this category. Rodeos, concerts, and horse shows are all events that directly generate revenue through participation fees, ticket sales, and related activities, making them legitimate sources for fundraising efforts. Sponsorships, while important, are usually considered more of a support mechanism rather than a standalone event or activity directly raising funds. Thus, in the context of this specific question, sponsorships stand out as not fitting the pattern of event-based fundraising that the other options represent.