编写如下事件过程：
Option Explicit
Private Sub Form_Click()
Dim Str As String,i As Integer
Open"examp" For Output As#1
For i=1 To 5
Str=Chr(i+65)
Print#1,Str;
Next i
Close 1
Open"examp" For Input As#2
Str=Input $ (5, #2)
Print Str;
Close #2
End Sub
程序运行后，单击窗体，则窗体上显示的内容是______。

A) Private Sub Check1_Click(Index As Integer)
Text1.Text=" "
For k=0 To 3
If Checkl(k).Value=1 Then
Text1.Text=Text1.Text＆ Check1(k).Caption＆" "
'双引号中是空格
End If
Next k
End Sub
B) Private Sub Check1_Click(Index As Integer)
For k=0 To 3
If Check l(k).Value=1 Then
Text1.Text=Text1.Text＆ Checkl(k)，Caption ＆" "'双引号中是空格
End If
Next k
End Sub
C) Private Sub Check1_Click(Index As Integer)
Text1.Text=" "
For k=0 To 3
If Check1(Index).Value=1 Then
Text1.Text1=Text1.Text＆Check1(Index).Caption＆" "'双引号中是空格
End If
Next k
End Sub
D) Private Sub Check1_Click(Index As Integer)
Text1.Text=" "
For k=0 To 3
If Check1(k).Value=1 Then
Text1.Text=Text1.Text＆Check1(k).Caption＆" " '双引号中是空格
Exit For
End If
Next k
End Sub

A) VISUAL BASIC
B) ISUAL BASIC 2011
C) CISAB LAUSIV 2011
D) 1102 CISAB LAUSIV