单项选择题

在窗体上画一个名称为Command1的命令按钮,然后编写如下事件过程: Private Sub Command1_Click() Dim k As Integer For i=1 To 3 k = i Call sub1(k) m=m + k Next i Print m; i End Sub Private Sub sub1(n As Integer) n = 1 + 2 * n End Sub 程序运行后,单击命令按钮,则窗体上显示的内容是

A.1 3
B.11 14
C.15 4
D.4 15