A report author has created this join relationship: The Order number by product query includes only orders that contain a specific product selected at run time.
What must the report author do to ensure that the joined query will only contain Order numbers that appear in both of the queries?
A . Select “+” from the Operator drop down list.
B . Select “=” from the Operator drop down list.
C . Select “in” from the Operator drop down list.
D . Select “>=” from the Operator drop down list.
Answer: B