Multiple choice technology programming languages Which of these is not an vaild messagebox in VB? vbOKonly vbExitOnly vbRetryCancel vbAbortRetryIgnore Reveal answer Fill a bubble to check yourself B Correct answer Explanation vbExitOnly is not a valid message box constant in Visual Basic. The valid options are vbOKOnly, vbRetryCancel, and vbAbortRetryIgnore, making B the correct answer for what is not valid.