In which two situations is it appropriate to use a Sparse Lookup? (Choose two.)

A.
When accessing DB2 data using the DB2 API stage.

B.
When the output of the Lookup stage needs to be hashed partitioned.

C.
When reference data is significantly larger than the streaming data (100:1).

D.
When invoking a stored procedure within a database per row in the streaming link.

Explanation: