A health maintenance organization may offer:
(1) indemnity benefits covering out-of-area emergency care;
(2) indemnity benefits, in addition to those relating to out-of-area and emergency care, provided through an insurer or group hospital service corporation;
(3) a point-of-service plan under Subchapter A, Chapter 1273; or
(4) a point-of-service rider under Section 843.108.