What is one of the primary claimed benefits of Smack over SELinux?

What is one of the primary claimed benefits of Smack over SELinux?

A.
Smack implement Rule Set Based Access Control. SELinux doesn’t support this model

B.
SELinux has export restictions placed on it by the NSA

C.
Configuration of Smack is much more simple

D.
Smack allows users to share files without administrator intervention