在列表框中当前被选中的列表项的序号是由下列哪个属性表示_________。

A．Private Sub Command1 CliCk()
Dim B As Books
Open"c:\Person.txt" For Output As #1
B.Name=InputBox("输入姓名")
B.TelNum=InputBox("输入电话号码")
Write #1，B.Name，B.TelNum
Close #1
End Sub
B．Private Sub Command1_Cliok()
Dim B As Books
Open"c：\Person.txt"For Input AS #1
B.Name=InputBox("输入姓名")
B.TelNum=InputBox("输入电话号码")
Print #1，B.Name，B.TelNum
Close #1
End Sub
C．Private Sub Command1_Click()
Dim B As Books
Open"c：\Person.txt" For Output As #1
B.Name=InputBox("输入姓名")
B.TelNum=InputBox("输入电话号码")
Write #1，B
Close #1
End Sub
D．Private Sub Command1_Click()
Dim B As Books
Open "c：\Werson.txt" For Input As #1
Name=InputBox("输入姓名")
TelNum=InputBox("输入电话号码")
Print #1，Name，TelNum
Close #1
End Sub

A．Picture1.Picture="mypic.jpg"
B．Picture1.Image="mypic.jpg"
C．Picture1.Picture=LoadPicture("mypic.jpg")
D．LoadPicture("mypic.jpg")