How to set startup to empty environment under options in tools menu in experimental instance of visual studio

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Visual-Studio

In Tools menu, under Options dialog box,

I need to select startup and in that need to set startup as empty environment in experimental instance of Visual Studio.

I need to do this through code, not through settings.

What I have tried:

EnvDTE.DTE dte =
(EnvDTE.DTE)Package.GetGlobalService(typeof(EnvDTE.DTE));
 CommandBars commandBars = (CommandBars)dte.CommandBars;
 CommandBar toolsMenu = commandBars["Tools"];
 // Find the "Options" item in the "Tools" menu
 CommandBarControl optionsControl = null;
 foreach (CommandBarControl control in toolsMenu.Controls)
 {
     if (control.Caption == "&Options...")
     {
         optionsControl = control;
         break;
     }
 }

Able to go till options