The following diagram represents an ATM class that’s used to…

The following diagram represents an ATM class that’s used to represent ATM devices that are part of a bank’s ATM system.  The attributes are data items the ATM must store about its own state and are needed to support the usual operation of withdrawing cash.  The methods are the ATM’s behaviors, or operations, needed to support the withdrawal operation.  Which of the following methods must be added to fully support that operation?  Select the one best choice.