下列( )事件过程可以将打开文件对话框的标题改变为“new Caption”。

A．Private Sub Command1_CliCk()
CommonDialog1.DialogTitle="new Caption"
CommonDialog1.ShowFont
End Sub
B．Private Sub Command1_Click()
CommonDialog1.DialogTitle="new Caption"
CommonDialog1.ShowOpen
End Sub
C．Private Sub Command1_Click()
CommonDialog1.DialogTitle="new Caption"
CommonDialog1.Show Help
End Sub
D．Private Sub Command1_Click()
CommonDialog1.DialogTitle="new Caption"
CommonDialog1.ShowColor
End Sub