What is a consequence of using a 16 TB drive and five 400 GB drives in a Dell EMC Unity XTDynamic pool?

A、Unisphereshortstrokesthe1.6TBdriveto8extents
B、Extents9-19areusedtocreatetheRAIDGroup
C、Extents9-19aremarkedunavailableandcanneverberecovered
D、Extents9-19aremarkedunavailableuntilmore1.6TBdrivesareadded