Because of the Prevalence of Instant Messaging and Emails,which of the Following

Because of the prevalence of instant messaging and emails,which of the following should be considered when writing a text or email for work?

A) Coworkers will understand jargon and acronyms.
B) Emoticons will enhance the meaning of your message.
C) Messages must be answered immediately.
D) Spelling, punctuation and capitalization are important for professionalism.
E) Spelling, punctuation and capitalization rules have changed and do not affect how others view your level of professionalism.