Which of the following best describe the role of the charter？A．The Charter only describes

Which of the following best describe the role of the charter？

A．The Charter only describes powers of the UN bodies.

B．The Charter mainly aims to promote world economy.

C．The charter is a treaty above all other treaties.

D．The charter authorizes reforms in UN bodies.

请帮忙给出正确答案和分析，谢谢！