单项选择题

窗体上有一个名为Command1的命令按钮，并有下面的程序：
Private Sub Command1_Click()
Dim arr(5) As Integer
For k=1 To 5
arr(k)=k
Next k
Prog arr()
For k=1 To 5
Print arr(k)
Next k
End Sub
Sub prog(a() as Integer)
n=Ubound(a)
For i=n To 2 Step-1
For j=1 To n-1
if a(j)＜a(j+1) Then
t=a(j):a(j)=a(j+1):a(j+1)=t
End If
Next j
Next i
End Sub
程序运行时，单击命令按钮后显示的是

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