If there are n tuples in the partition and the rank of the tuple is r, then its ________ is defined as (r 1)/(n 1).

If there are n tuples in the partition and the rank of the tuple is r,

1.	If there are n tuples in the partition and the rank of the tuple is r, then its ________ is defined as (r 1)/(n 1).
A.	Ntil()
B.	Cum_rank
C.	Percent_rank
D.	rank()
Answer» D. rank()