I know this plan is far from perfect, but I just can't think of _______one.
A:a better
B:the better
C:a best
D:the best
把红、黄、蓝、白4张纸牌随机地分发给甲、乙、丙、丁4个人,事件“甲分得红牌”与“乙分得蓝牌”是 ( )