―What can I do for you?

―__________.

A．I’m looking for a tie for my father

B．Yes, you can give a tie to me

C．No, I can do it myself

D．I can do what I want

处理后的建筑地基的整体稳定分析可采用圆弧滑动法，其稳定安全系数为（）

A.≥1.20

B.≥1.30

C.≥2.0

D.≥3.0