(1) Privately owned - Incorrect. Public media is not privately owned.
(2) Serving masses - Correct. Public media serves the general public.
(3) Individual expression - Incorrect. This describes personal media, not public media.
(4) Inaccessible - Incorrect. Public media is meant to be accessible.
Public media refers to media outlets whose mission is to serve or engage the general public, typically funded through public means and focused on public service rather than commercial profit.