Block size is calculated by the following formula.
A.
Number of stored sparse dimension members multiplied together times 8 bytes
B.
Number of total sparse dimension members multiplied together times 8 bytes
C.
Number of stored dense dimension members multiplied together times 8 bytes
D.
Number of total dense dimension members multiplied together times 8 bytes
Explanation:
http://www.exforsys.com/forum/data-warehousing/96809-hyperion-essbase.html#9
C