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