1) Email use in business A) continues to be an effective communication tool. B) is no longer relevant and has been replaced by other tools. C) can no longer reach the right audiences. D) is too formal for today's casual business climate. 2) Twitter is by and large classified as a(n) A) podcasting platform. B) microblogging system. C) email platform. D) tutorial system. 3) When it comes to writing messages in today's business environment, A) printed letters are obsolete. B) printed letters are still used for external communication. C) email has completely replaced printed memos for internal communication. D) electronic messages have no weight in a court of law.