In the Context of Writing a Business Message, the Goal

In the context of writing a business message, the goal of completeness specifically means that

A) your message avoids all miscalculation, misinformation, and typographical errors.
B) your message provides all the information necessary to meet the intended purpose.
C) your language is efficient, saying as much as you can in as few words as possible.
D) your layout has a lot of long paragraphs and few white spaces.
E) your word count is as low as possible without redundancies or empty phrases.