Neither of them knows the difference ________ the two and neither can we tell one ________the other.

A．between; between

B．among; from

C．among; between

D．between; from

党的群众路线教育实践活动重点任务是集中解决形式主义、官僚主义、享乐主义和（）之风等“四风”问题。

A.奢靡主义

B.腐败主义

C.冒进主义

D.跃进主义