单项选择题

执行下列程序后,鼠标单击窗体,输出结果为( )。
Private Sub Form_Click()
Print "Click";
End Sub
Private Sub Form_MouseDown(Button As Integer, Shift

As Integer,X As Single,Y As Single)
Print "Down"
End Sub
Private Sub Form_MouseUp(Button As Integer, Shift_As Integer,X As Single,Y As Single)
Print "Up"
End SubA) DownUpClick
B) ClickDownUp
C) DownClickUp
D) UpDownClick