How many Dell EMC SC9000 slots, per controller, are available for PCle cards?
A. 3 full height and 3 half-height card slots
B. 3 full height and 4 half-height card slots
C. 3 full height (one reserved for write cache) and 3 half-height card slots
D. 4 full height (one reserved for write cache) and 3 half-height card slots