You are creating a Windows Forms application by using the .NET Framework 3.5. The application requires a thread that accepts a single integer parameter. You write the following code segment （Line numbers are included for reference only.） Thread myThread = new Thread（new ParameterizedThreadStart（DoWork）） ； myThread.Start（100）； You need to declare the method signature of the DoWork method. Which method signature should you use？（）

A. public void DoWork（）；
B. public void DoWork（int nCounter）；
C. public void DoWork（object oCounter）；
D. public void DoWork（Delegate oCounter）；