C2080-470 practice

Q4 Single choice

A client's base selection table in the database uses more than one column to indicate a specific audience record.
Is this a problem for the Unica Campaign system?

A
No, as long as one column is of a numeric data type.
B
No, any number of columns can be used to determine an audience.
C
Yes, only one column can be used within an audience.
D
Yes, multi column keys create performance limitations and should be avoided.