DRAG DROP
Exhibit:
public class Machine {
public int Multiply(int x, nty) {
}
}
There is WCF (Windows Communication Foundation) service which is being implemented.
You use the class displayed in the exhibit.
The class must be exposed as a service named PassGuideA and operation OperationX.
The internal implementation at the service layer should not be exposed.
Which code should be used?

Answer:

Explanation: