[单选]
You are creating a Windows Forms application by using the .NET Framework 3.5. You create a new form in the application.You add a ContextMenuStrip control named dctxMenu to the form. You have a user defined class named CustomControl.You write the following code segment in the application （Line numbers are included for reference only ）
CustomControl myControl = new CustomControl（）；
You need to ensure that an instance of CustomControl is displayed on the form as a toplevel item of the ctxMenu control.
Which code segment should you add？（）

A . A
B . B
C . C
D . D

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You are creating a Windows Forms application by using the .NET Framework 3.5. You create a new form in the application.You add a ContextMenuStrip control named dctxMenu to the form. You have a user defined class named CustomControl.You write the following code segment in the application （Line numbers are included for reference only ）
CustomControl myControl = new CustomControl（）；
You need to ensure that an instance of CustomControl is displayed on the form as a toplevel item of the ctxMenu control.
Which code segment should you add？（）

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