—Doctor, it seems that you like to work with animals.

—Yes, I think animals should _______ our friends.

A．regard as

B．be regarded as

C．be regarding with

D．regarded for

指甲必须保持整齐干净，指尖不宜过尖锐；女员工指甲不得超过（），不能涂色彩艳丽的指甲油，指甲油只能为无色或肉色，不可有贴花和闪粉，男员工指甲不得超过（）。