You are creating a Windows Forms application by using the .NET Framework 3.5.
The application requires a form to display a clock. You need to create a circular form to display the clock.
Which code segment should you use?
A.
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
path.AddEllipse(0, 0, this.Width, this.Height);
Region reg = new Region();
this.Region = reg;
B.
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
path.AddEllipse(0, 0, this.Width, this.Height);
Region reg = new Region(path);this.Region = reg;
C.
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
path.AddEllipse(0, 0, this.Width, this.Height);
Region reg = new Region(path);this.Region = reg;
D.
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
path.AddEllipse(0, 0, this.Width, this.Height);
Region reg = new Region();this.Region = reg;