stion 24 yet ered ed out of move flag Which of the following is an example of horizontal communication? O a. A supervisor tells an employee that he has been performing poorly. O b. An employee explains to her boss why her performance has not been up to par recently. The vice-president of marketing sends a memo to the vice-president of manufacturing. O d. The president of a college calls a meeting to explain the college's financial situation to the faculty. O e. A purchasing agent leaves a voicemail message for a new supplier.