单项选择题

阅读下列程序。
Private Sub Command1_Click()
Dim i As Integer,k As Integer
k=2
For i=1 To 3
Print Fun(k);
Next
End Sub
Function Fun(j As Integer)
Static b
a=0
a=a + 1
b=b + 1
Fun=a*b+j
End Function
程序运行后,单击命令按钮输出结果是

A.234
B.345
C.567
D.356