阅读程序： Sub subP(b() As Integer) For i＝1 To 4 b(i)=2 * i Next i End Sub Private Sub Command1_Click() Dim a(1 To 4) As Integer a(1)＝5 a(2)＝6 a(3)＝7 a(4)＝8 subP a() For i＝1 To 4 Print a(i) Next i End Sub 运行上面的程序，单击命令按钮，输出结果为
A．2
4
6
8
B．5
6
7
8
C．10
12
14
16
D．出错