Answer:
C. The central and regional authorities have their own powers, but share power when necessary
Explanation:
In federalism, regional authorities were given with independence to control each of their own territories. Regional leaders will be able to create laws and legislations to fully reach their regions' potentials and to address the social issues that specifically exist in their region.
The central authorities will play the role as a regulator. They determine the contribution that each regions need to made to fund activities that will benefit the nation as a whole. They also will handle the conflicts that potentially occurred between regions,.