According to the writer, why have executives possibly overlooked their businesses（）

A. Such and other negative interpersonal behaviors often stem from feelings of isolation.
B. This stems from the asynchronous nature of communication.
C. Increasing the rate of e-mail exchange prevents misunderstanding because misperceptions can be quickly rectified.
D. This will result in the failure of communication.
E. Suspicion and hostility increase as the communication between parties diminishes.
F. Negotiators are much more likely to issue threats when communicating via information technology.
G. Most people overestimate the ability of other people to make sense out of what they mean.
H. This is of critical importance in electronic interaction because the norms of mm taking and conversation are not clear.