To have the most impact when using e-mail, you should structure your messages so that a. the main issues are bulleted and highlighted in red. b. the most important information comes first. c. each main point is placed on a separate screen. d. each point is addressed in a separate message.

The correct answer would be B, The most important information comes first.

Explanation:

Writing an email to a person means you are going to communicate your important message to him. The impact of your email will be high and most, when you mention the most important points first and then communicate the remaining points to him according to the importance and priority of the message that needs to be conveyed.