There ______ a talk about science in our school next week.[ ]

A. be

B. have

C. is going to be

D. is going to have

在窗体上有一个命令按钮，然后编写如下事件过程：

Private Sub Command1_Click()

Dim a(5) As String

FOR i=1 To 5

a(i) =Chr(Asc("A") +(i-1))

Next

For Each b In a

Print b；

Next

End Sub

程序运行后，单击命令按钮，输出结果是

A．ABCDE

B．1 2 3 4 5

C．abcde

D．出错信息