Final answer:
A supranational organization has legal authority over its member states in specified areas, as is the case with the European Union, but does not have complete sovereignty over them.
Step-by-step explanation:
A supranational organization is defined as a type of intergovernmental organization where member states bind themselves together through a collective agreement that involves a degree of authority or influence above individual governments. The concept of a supranational organization includes the aspect of having legal authority over its members, mostly in specific areas agreed upon in treaties.
An example of a supranational organization is the European Union (EU), which goes beyond just cooperation and actually involves member states surrendering a degree of sovereignty, allowing for the creation of common laws and practices in areas such as trade, environmental policy, and justice. While states retain their own governance, EU laws take precedence in the agreed areas of shared policy.
The idea of global governance is another perspective through which the role of supranational organizations can be understood. They play an integral role in coordinating collective action for global public goods like peace, security, economic prosperity, and environmental protection.
In the question provided, the correct answer is that a supranational organization has legal authority over its members (C), but it does not have complete authority over its member-states. The authority is typically limited to specific areas as defined by the agreements establishing the organization.
A supranational organization has legal authority over its member states in certain agreed upon areas but does not have complete authority over them. This allows for a form of governance above national levels to achieve common goals, such as in the EU.