Which of the following is the best example of "flipping"?
◦ Martin, a police officer, has accepted bribes from crime figures in exchange for not filing charges.
◦ Nancy, an undercover informant, seeks to entrap a high level crime figure.
◦ Dante has agreed to provide information about an associate in exchange for his own charges being dropped.
◦ Bruno, an associate of a crime family who has become an informant, is blackmailing his controlling officer.