Which restrictions on cascaded storage groups on Symmetrix storage arrays running Enginuity 5876 are correct?
A. Parent may have up to 32 children, child may only be contained by a single parent.
B. FAST can be associated with Parent, SGs can only contain devices or other SGs.
C. Masking is permitted for child and parent, only a single level of cascading is permitted.
D. Parent may be a child of another SG, SGs can contain both devices and other SGs.