Which code segment should you use?

You create a Windows Workflow Foundation application by using Microsoft .NET Framework 3.5.

The workflow contains a custom activity named CustomActivity. The custom activity meets the following requirements:

It overrides the Execute method.
It retrieves customer information.

You need to stop the workflow if the customer information cannot be retrieved.

Which code segment should you use?

A.
throw new CustomerNotFoundException();

B.
executionContext.CancelActivity(this);

C.
return ActivityExecutionStatus.Faulting;

D.
RaiseEvent(FaultingEvent, this, EventArgs.Empty);