(a) A person may not qualify for a public elective office unless the person is a registered voter.
(b) Subsection (a) does not apply to an office for which the federal or state constitution prescribes exclusive qualification requirements.
(c) Subsection (a) does not apply to a member of the governing body of a district created under Section 52(b)(1) or (2), Article III, or Section 59, Article XVI, Texas Constitution.