Question no 2905 : Type of Object Dependecy to choose operations in Configurable Task list

In SAP PM/CS as at ECC6.0 EhP6, which of the following object dependency types are used for choosing an operation from a configurable task list ?

(only one answer)

A)   Selection Condition.
B)   Pre-Condition.
C)   Constraint.
D)   Action.
E)   Procedure.
.