单项选择题

下列程序的执行结果为( )。   Private Sub Commandl_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  20  15
B. 12  20  12  25
C. 24  15  12  20
D. 24  12  12  15