单项选择题

在窗体上画一个命令按钮,然后编写如下程序: Private Sub Command1_Click() Dim a As Integer, b As integer b = 1 For a = 1 To 100 If b >= 10 Then Exit For If b Mod 3 = 1 Then b = b + 3 End If Next a Print a End Sub 在命令按钮上单击后,窗体上显示的结果是 ______。

A.101
B.6
C.5
D.4