Records in a source file must be aggregated for further processing. Which two conditions would
require the use of a Transformer stage instead of or in addition to an Aggregator stage? (Choose
two.)

A.
The data hasn’t been sorted or grouped.

B.
A global aggregation across all partitions is needed.

C.
The aggregation is a custom formula for your enterprise.

D.
Aggregation results outside of a certain range need to be flagged as abnormal.

Explanation: