(a) In this section, "senior citizen" means a person 65 years of age or older.
(b) The governing board of a state-supported institution of higher education may allow a senior citizen to audit any course offered by the institution without the payment of a fee if space is available.
(c) The governing board of an institution of higher education may allow a senior citizen to enroll for credit in up to six hours of courses offered by the institution each semester or summer term without payment of tuition if space is available.