Technology has changed the way we communicate in all aspects of our lives. In the office, texting has become widely acceptable along with e$-$mail and face$-$to$-$face conversations. Which of these three methods would be the preferred channel for each of the following scenarios and why?

A$.$ A manager decides she has to fire an employee who has been warned for poor performance three times in the past and has made no discernable improvement. How should she best communicate to the employee that she is being terminated?

B$.$ A manager wants to alert a salesman who is out of the office that he needs to attend a department meeting at $9$ a$.$m$.$ the next morning.

C$.$ The manager in Scenario B wants to get the agenda out to everyone who will be attending tomorrow's department meeting so they can prepare in advance and bring necessary materials to the meeting.