Which requirement must a recruiting/scouting service fulfill for an institution to subscribe?

The requirement that a recruiting or scouting service must fulfill for an institution to subscribe is that the service must be available to all institutions at the same rate. This ensures fairness and equality among schools in their access to scouting services, which is crucial for maintaining an equitable recruiting environment. By having a standard rate for all institutions, it prevents any particular school from having an unfair advantage based on its financial resources or connections.

The other choices do not align with the NCAA's guidelines regarding recruiting services. For instance, the requirement of disseminating information less than four times per year would not meet the expectations for a service that provides continuous access to performance data and scouting reports. Similarly, providing individual analysis only for a fee may create a disparity in accessibility among institutions, which goes against the principle of equal access. Finally, a service that only serves regional institutions does not meet the broader expectation of availability to all schools, which could limit fair competition and recruitment opportunities on a national scale.