— What are you going to do this afternoon?

— I'll probably go for a walk later on________it stays fine. [ ]

A. as far as  

B. so long as

C. even if  

D. as though

《公司法》规定：“设立公司必须依照本法制定公司章程。”这条规定属于( )。

A．禁止性规范

B．授权性规范

C．强制性规范

D．任意性规范