Francis Is Starting His First Full-Time Job After Graduating from College

Francis is starting his first full-time job after graduating from college, and he wants to sound conversational but professional on the job. What is the best advice you can give him?

A) He should avoid sending text messages on the job because doing so will make him look unprofessional.
B) He should strive for an informal, conversational tone in most business messages.
C) He should use texting-style abbreviations such as BTW and slang in his professional messages to be concise and to show that he's up-to-date with technology.
D) He should use high-level diction in most business messages.