How would a Knowledge Module, that is required to perfo…

How would a Knowledge Module, that is required to perform an aggregation in a Mapping, generate the correct
code? (Choose the best answer.)

A.
The Knowledge Module must be customized because business rules and the physical implementation are
strictly interlayed in ODI.

B.
The Knowledge Module must be customized only for aggregation functions.

C.
The Knowledge Module need not be customized because aggregation code is generated automatically by
ODI according to the Mapping logic.

D.
The Knowledge Module need not be customized, but a variable must be used in the aggregate expression
to generate the correct sum.

Explanation:
(https://docs.oracle.com/middleware/1212/odi/ODIDG/mappings.htm#ODIDG1625)