Which three statements are true about stage variables? (Select three)
A.
Stage variables cannot contain NULL values.
B.
Stage variables are executed before loop variables.
C.
Stage variables retain their values between rows in the stage.
D.
Stage variables are executed after constraints but before derivations.
E.
A derivation for a stage variable can reference stage variables that are later in the execution
order.
Explanation:
http://lv97.com/l/index.php?view=DS(See stage variables)