Periodically Making Yourself Unavailable for Instant Messaging

Multiple Choice

Periodically making yourself unavailable for instant messaging

A) is a wise move that can increase your productivity.
B) is never a good idea in today's high-tech environment.
C) is acceptable, as long as you notify everyone who has access to your system to explain what you are doing.
D) has been shown to decrease overall productivity.
E) is helpful and expected unless you are a manager, supervisor, or executive.