设在窗体上有一个名称为Command1的命令按钮，并有以下事件过程：
Private Sub Command1_Click()
Static b As Variant
b=Array(1, 3, 5, 7, 9)
…
End Sub
此过程的功能是把数组b中的5个数逆序存放(即排列为9, 7, 5, 3, 1)。为实现此功能，省略号处的程序段应该是：______。

A．软件系统投入运行到软件系统被淘汰
B．软件系统开始研制到软件系统投入试运行
C．软件系统投入试运行到软件系统被淘汰
D．软件系统开始研制到软件系统被淘汰

A．Private Sub Command1_Click()
Dim p As Person
p. name=Text1. Text
p. major=Text2. Text
Open"C:\data. dat" For Random As #1
Put #1, 1, p
Close #1
End Sub
B．Private Sub Command1_Click()
Dim p As Person
p. name=Text1.Text
p. major=Text2. Text
Open"C:\data. dat" For Random As #1
Get #1, 1, p
Close #1
End Sub
C．Private Sub Command1_Click()
Dis p As Person
p. name=Text1. Text
p. major=Text2. Text
open "C:\data. dat" For Random As #1 Len=Len(p)
Put #1, 1, p
Close #1
End Sub
D．Private Sub Command1_Click()
Dim p As Person
p. name=Text1. Text
p. major=Text2. Text
Open "C:\data. dat" For Random As #1=Len(p)
Get #1, 1, p
Close #1
End Sub