Plaintiff sued Defendant for illegal discrimination, claiming that Defendant fired him because of his race. At trial, Plaintiff called Witness, expecting him to testify that Defendant had admitted the racial motivation. Instead, Witness testified that Defendant said that he had fired Plaintiff because of his frequent absenteeism. While Witness is still on the stand, Plaintiff offers a properly authenticated secret tape recording he had made at a meeting with Witness in which Witness related Defendant's admissions of racial motivation. The tape recording is 
admissible as evidence of Defendant's racial motivation and to impeach Witness's testimony. admissible only to impeach Witness's testimony. inadmissible, because it is hearsay not within any exception.  inadmissible, because a secret recording is an invasion of Witness's right of privacy under the U.S. Constitution.