(a) The court has exclusive, original jurisdiction over any case involving a juvenile who is alleged to be undisciplined. For purposes of determining jurisdiction, the age of the juvenile at the time of the alleged offense governs.
(b) When the court obtains jurisdiction over a juvenile under this section, jurisdiction shall continue until terminated by order of the court, the juvenile reaches the age of 18 years, or the juvenile is emancipated.
(c) The court has jurisdiction over the parent, guardian, or custodian of a juvenile who is under the jurisdiction of the court pursuant to this section, if the parent, guardian, or custodian has been served with a summons pursuant to G.S. 7B-1805.