Should I put down Hispanic?

Glad to help!
https://collegereadiness.collegeboard.org/psat-nmsqt-psat-10/scholarships-and-recognition/national-hispanic-recognition-program

Look for ** Self-Nomination Instructions **

** NHRP’s Definition of Hispanic/Latino **

To be eligible, you must be at least one-quarter Hispanic/Latino. Hispanic/Latino is an ethnic category, not a racial category, so you can be of any race.

You must have ancestors from at least one of these countries: Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Puerto Rico, Spain, Uruguay, or Venezuela.