You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service will expose a method named DoProcess to the client applications. 
You write the following code segment. (Line numbers are included for reference only.) 
01 [ServiceContract] 
02 public interface IMyService 
03 { 
04 
05 } 
You need to ensure that the client applications are not required to obtain results from the DoProcess method. 
Which code segment should you insert at line 04? 
A.
[OperationContract(IsOneWay=true)]  
bool DoProcess(); 
B.
[OperationContract(IsOneWay=true)]  
void DoProcess(); 
C.
[OperationContract(AsyncPattern=false)]  
bool DoProcess(); 
D.
[OperationContract(AsyncPattern=false)]  
void DoProcess();