Which of the following is TRUE about Transformer Stage when
$APT_TRANSFORM_COMPILE_OLD_NULL_HANDLING is set?

A.
A Modify Operator is inserted at run time before a Transformer stage to handle null values

B.
If an input column that is used in the derivation expression of an output column contains a null value, then
the
resulting output column contains a null.

C.
If an input column that is used in the derivation expression of an output column contains a null value, then
that row will be dropped or, if a reject link had been defined, rejected

D.
If an input column that is used in the derivation expression of an output columncontainsa null value, then the
resulting output column will be calculated ignoring the Null value.