Which of the following statements should be considered when writing a business message?

a$.$

Response to emails should be as prompt as possible to avoid miscommunication.

b$.$

Communicating negative or critical messages through emails is acceptable.

c$.$

Use of smiley faces, abbreviations, and more than one exclamation points enriches the message.

d$.$

Attachments of relevant documents should always be used to provide details to the receiver.