Which of the following is an example of the mum effect?
◦ The young lawyer who lost the court case delayed telling the senior partner of the law firm.
◦ The manager would only communicate with workers through their supervisor.
◦ The secretary did not care to participate in the office grapevine.
◦ The president of a firm would not tell a newspaper reporter what the firm's market share was.
◦ The sales manager decided to postpone announcing the good news about the Christmas bonuses until the company party at the end of the month.