Which of the following is true of concise messages?

A) They use outdated expressions and have a dull and unnatural tone.
B) They divert attention from the real message to emotional issues that have little to do with the message.
C) They save time and money for both the sender and the receiver.
D) They include jargons and clichés.

Concise messages save time and money for both the sender and the receiver by getting straight to the point and avoiding unnecessary information. Option A is incorrect because concise messages avoid outdated expressions and clichés to make the message sound more natural. Option B is incorrect because concise messages focus on the real message without getting sidetracked by emotional issues. Option D is also incorrect because concise messages avoid using jargon and clichés.