Which statement is most accurate regarding the role that supervisors can take to improve the quality of messages in the grapevine? Multiple choice question. The supervisor should ignore the grapevine and not get involved in messaging, since supervisors cannot impact messages in the grapevine. Employees who see their supervisor as a person of integrity are more likely to believe their supervisor's official messages over messages in the grapevine. Unofficial messages spread through the grapevine are generally considered more trustworthy than messages communicated through supervisors