Which of the Following Guidelines Should Be Followed When Writing

Which of the following guidelines should be followed when writing order acknowledgement messages?

A) Begin the message with bad news if there is any.
B) Focus on the delay of an order and emphasize that it is your company's fault.
C) Include information about new products, services, or opportunities for the reader.
D) Refrain from mentioning a delay if it is due to unexpected reasons.
E) Avoid wasting time in building goodwill and stick to the main point.