The best response is:
C League of Arab Nations because each country retains its own power but works together.
A confederation is defined by the alliance of independent states that work together for common goals, while each state retains its sovereignty and authority over its own affairs. In the case of the League of Arab States, the individual member states, such as Saudi Arabia and others, maintain their own governments and powers but collaborate on mutual interests, which aligns with the characteristics of a confederation.