When designing protection storage using Dell EMC DPS Storage Direct for a VMAX solution, which formula should be used to size the storage capacity?

When designing protection storage using Dell EMC DPS Storage Direct for a VMAX solution, which formula should be used to size the storage capacity?
A . (Number of LUNs *Size) * (Copies +1)
B . (Number of LUNs *Size) * (Copies +2)
C . (Number of LUNs +2 *Size) * (Copies +1)
D . (Number of LUNs +2 *Size) * (Copies +2)

Answer: B