A Campaign developer is configuring a direct mail delivery.
The Campaign developer selects "By data groupings” when configuring the control group sampling within the delivery.
What is the reason for this configuration?
A . By data groupings associates the campaign with a pre-selected control group population.
B . The sampling will take the same number of records within each data grouping identified.
C . Data is sorted by the data groupings attribute before the sample is pulled from the target population.
D . The control group and the target group are extracted as separate files once the delivery executes.
Answer: B