单项选择题

You are developing a client that sends several types of SOAP messages to a Windows Communication Foundation (WCF) service method named PostDatA.PostData is currently defined as follows:[OperationContract]void PostData(Order data);You need to modify PostData so that it can receive any SOAP messagE.Which code segment should you use?()
A.[OperationContract(IsOneWay=true, Action="*", ReplyAction="*")] void PostData(Order data);
B.[OperationContract(IsOneWay=true, Action="*", ReplyAction = "*")] void PostData(BodyWriter data);
C.[OperationContract] void PostData(BodyWriter data);
D.[OperationContract] void PostData(Message data);