Windows Communication Foundation (WCF) application uses a data contract that has
several data members. You need the application to throw a Serialization Exception if any of
the data members are not present when a serialized instance of the data contract is
deserialized. What should you do?
A.
Add the Known Type attribute to the data contract. Set a default value in each of the data
member declarations.
B.
Add the Known Type attribute to the data contract. Set the Order property of each data
member to unique integer value.
C.
Set the Emit Default Value property of each data member to false.
D.
Set the lsRequired property of each data member to true.