单选题

在窗体上画一个名称为Text1的文本框，要求文本框只能接收大写字母的输入。以下能实现该操作的事件过程是

Question

A. Private Sub Text1_KeyPress(KeyAscii As Integer)
If KeyAscii < 65 Or KeyAscii > 90 Then
MsgBox "请输入大写字母"
KeyAscii = 0
End If
End Sub

B. Private Sub Text1_KeyDown(KeyCode As Integer, Shift As Integer)
If KeyCode < 65 Or KeyCode > 90 Then
MsgBox "请输入大写字母"
KeyCode = 0
End If
End Sub

C. Private Sub Text1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
If Asc(Text1.Text) < 65 Or Asc(Text1.Text) > 90 Then
MsgBox "请输入大写字母"
End If
End Sub

D. Private Sub Text1_Change()
If Asc(Text1.Text) > 64 And Asc(Text1.Text) < 91 Then
MsgBox "请输入大写字母"
End If
End Sub