要求当鼠标在图片框P1中移动时，立即在图片框中显示鼠标的位置坐标。下面能正确实现上述功能的事件过程是
A)Private Sub P1_MouseMove(Button As Integer，Shift As Integer，X As Single，Y As Single)
Print X，Y
End Sub
B)Private Sub P1_MouseDown(Button As Integer，Shift As Integer，X As Single，Y As Single)
Picture.Print X，Y
End Sub
C)Private Sub P1_MouseMove(Button As Integer，Shift As Integer，X As Single，Y As Single)
P1.Print X，Y
End Sub
D)Private Sub Form_MouseMove(Button As Integer，Shift As Integer，x As Single，Y As Single)
P1.Print X，Y
End Sub