Under FERPA, an "eligible student":

An eligible student under the Family Educational Rights and Privacy Act (FERPA) is defined as a person who is 18 years of age or older, or who attends a school beyond the high school level. This means that the student has reached an age where they can exercise their own rights regarding their educational records.

Once a student becomes eligible, they gain specific rights concerning their education records, including the right to inspect and review their records, the right to request amendments to records, and the right to control the disclosure of personally identifiable information from those records. This shift in rights typically occurs when a student turns 18 or enrolls in post-secondary education, reflecting the law's intention to promote student autonomy.

The other options do not accurately capture the definition of an eligible student under FERPA. For instance, while enrollment in higher education institutions can make a student eligible, it does not encompass all situations, such as those who are still in high school but have turned 18. Additionally, primary school attendance or supervision by a mentor does not pertain to the FERPA definition of eligibility.