Which Statement Is True About the Default Script Field When

Which statement is true about the default script field when adding an application?

A) When a caller does not enter a choice in a Menu step, it will execute the default script.
B) Any problems running the configured script will cause the default script to be executed.
C) When the caller enters a digit in the Menu step that is not defined, the default script will be executed.
D) When the caller enters a digit that is not checked in the filter of the Get Digit String step, the default script will be executed.