Joyce is writing an article for the company's intranet to encourage managers to use plain English. Which of these sentences uses an appropriate business style to express Joyce's point?
A、If you obliterate the obfuscation in your e-mail messages, your department members will respond more appropriately.
B、Employees will respond better if you write e-mail messages with familiar language and a friendly, conversational style.
C、Before sending an e-mail message to your department, run it up the flagpole to see if anyone salutes.
D、Per company directives, please cease and desist from sending incomprehensible e-mail messages to department members.