In the event of a conflict between the obligations of the Members of the United Nations under the present Charter and their obligations under any other international agreement，their obligations under the present Charter shall prevail 这条规定体现了宪章的哪项原则？（）

A.保证非会员国遵守宪章原则
B.主权平等原则
C.善意履行宪章义务，且宪章义务优先原则
D.集体协助原则