When using the ranking feature on a table, which expression allows you to display the total of all values (both ranked and unranked) in the footer of the block?

When using the ranking feature on a table, which expression allows you to display the total of all values (both ranked and unranked) in the footer of the block?
A . NoFilter(Sum([measure]))
B . Sum([measure) For Each [dimension])
C . Sum([measure]) In Block
D . RefValue(Sum([measure]))

Answer: A