单项选择题

在窗体上画一个名称为Command1的命令按钮,然后编写如下程序: Option Base 1 Private Sub Command1_Click() Dim c As Integer, d As Integer d = 0 c = 6 x = Array(2, 4, 6, 8, 10, 12) For i = 1 To 6 If x(i) > c Then d = d + x(i) c = x(i) Else d = d - c End If Next Print d End Sub 程序运行后,如果单击命令按钮,则在窗体上输出的内容为______。

A.10
B.16
C.12
D.20