Which of the following is the BEST or MOST important tip for writing a good e-mail body?

Explanation

Explanation:

You've got to write briefly what is most important about what you want to express.

You should write the key words in a list, then, try a way to fuse all that concepts in the less sentences you can, if you want, you can rewrite it several times, so you can get the idea of what you really want to express.