Most of our fears are unreasonable, but we find ______.

A．it impossible to erase them

B．that they can not erase

C．them to erase impossible

D．erasing them impossible

党的纪律是刚性约束，政治纪律更是全党在（）方面必须遵守的刚性约束。

A、政治方向

B、政治立场

C、政治言论

D、政治行动