Final answer:
The true statement about public broadcasting is that one of its main missions continues to be providing educational children's programming.
Step-by-step explanation:
Among the provided statements about public broadcasting, the option that is true is C) One of its main missions continues to be providing educational children's programming. Public broadcasting, which includes entities such as PBS (Public Broadcasting Service) and NPR (National Public Radio), has been committed to delivering educational content since its inception. While developments have indeed occurred regarding funding and political pressures, a key pillar of its mission remains educational programming, particularly for children.