Question

by settling border disputes between member nations, the league of nations succeeded in its goal of acting as an international court. reducing nations isolationism. finding peaceful resolutions. rewarding the most powerful nations.

Explanation:

The League of Nations aimed to prevent war through peaceful means. Settling border disputes is a form of finding peaceful resolutions. Acting as an international court is a function but not the goal here. Reducing isolationism isn't directly related to border - dispute settlement. Rewarding powerful nations is not in line with the League's purpose of collective security and peace.

Answer:

finding peaceful resolutions.