窗体上有一个命令按钮，命令按钮的单击事件过程如下。运行程序后，单击命令按钮，输出结果是( )。
Private Sub Command1_Clcik()
　　Dim a
a=Array(1,2,3,4,5)
For k=1 To 4
　　s=s+a(k)
　Next k
　Print s
End Sub

A．Private Sub Text1_GotFocus()
Text1.SelStart=0
Text1.SelStart=Len(Text1.text)
End Sub
B．Private Sub Text1_LostFocus()
Text1.SelStart=0
Text1.SelStart=Len(Text1.text)
End sub
C．Private Sub Text1_Change()
Text1.SelStart=0
Text1.SelStart=Len(Text1.text)
End sub
D．Private Sub Text1_SetFocus()
Text1.SelStart=0
Text1.SelStart=Len(Text1.text)
End sub

A．KeyPress和Click
B．KeyPress和LostFocus
C．KeyPress和Change
D．Change和LostFocus