下列程序的执行结果为 Private Sub Command1_Click() Dim x As Integer，Y As Integer x=12:y=20 Call Value(x，y) Print x;y End Sub Private Sub Value(ByVal m As Integer，ByVal n As Integer) m=m*2:n=n-5 Print m；n End Sub
A．20 12
B．12 20
C．24 15
D．24 12
20 1 12 25 12 20 12 15