下列有关我国民族政策的内容叙述错误的是[ ]

A．各民族无论大小一律平等

B．在各少数民族聚居的地方实行民族区域自治

C．国 * * 障过少数民族的合法权利和利

D．国家不协助少数民族地区的经济和文化的发展

— The terrible accident is under investigation.

— Actually, quicker action _________ those workers trapped in the mine.

A．may have saved

B．must have saved

C．should have saved

D．could have saved