Which of the following is a micro-blogging social network site that allows users to send and receive 140-character messages?

In addition to making the message as short as possible, what is the advantage to using a direct format for bad news messages?

A) The direct format increases understanding. B) The direct format increases acceptance. C) The direct format clearly identifies the bad news so fewer assumptions are made. D) The direct format saves the reader time. E) The direct format saves the writer time.

The optimal solution of a linear programming model occurs at a corner of the feasible region

a. True b. False