运行下列程序:Private Sub Form_Click( )Dim y As Integer, x As IntegerDo Until x > 20x

运行下列程序：

Private Sub Form_Click( )

Dim y As Integer, x As Integer

Do Until x > 20

x = x + 10

y = y + x

If x > 20 Then Exit Do

Loop

Print x, y

End Sub

单击窗体后，则在窗体上显示的结果是( )。

A.10 20

B.30 60

C.10 30

D.20 60