The most accurate response is:
Both forms of organizations provide humanitarian efforts, but they are funded by different entities and have different levels of scope and power.
This statement captures the essence of the differences between governmental and nongovernmental organizations in humanitarian efforts. Governmental organizations typically have access to public funding and resources, often providing large-scale efforts with the backing of state power. Nongovernmental organizations, on the other hand, are often funded by private donations, grants, and international aid, which can limit their scope and resources, but they may be more flexible and responsive in crisis situations.