Which of the Following Statements Are Good Netiquette for a Worker

Which of the following statements are good netiquette for a worker to practice?​

A) Don't worry about typos.Get the message and get it out fast.This is a crisis!
B) If you don't understand an acronym,be patient.You'll figure it out and you won't look stupid or offend the client.​
C) Choose a font style that lets the client get a glimpse of your personality so you come across as more human.​
D) Brevity in your responses is a good thing,so use standard,clear,counseling responses.