(a) No inmate of a public or private institution for the insane and no person under the care of a guardian by reason of any mental incapacity shall be entitled to vote.
(b) Every person who has been convicted by a court of competent jurisdiction of a felony or of a crime involving moral turpitude shall be debarred from voting while serving out his sentence, including any period of incarceration, probation, or parole.
(c) The right to vote is automatically restored to every person convicted of a felony upon completion of all the conditions of the person's sentence, including any period of incarceration, probation, parole, or payment of restitution.