Which of the Following Guidelines Should Be Followed When Answering

Which of the following guidelines should be followed when answering two or more questions in a favorable response message?

A) Answer the questions in order of simplest to most complex.
B) Respond to the most important query as quickly as possible, then follow up with a second message addressing the less important questions.
C) Avoid telling the reader that you are complying with his or her request, as it sounds redundant.
D) Avoid numbering your answers, unless the questions they are responding to were also numbered.
E) Arrange the answers in the same order as the corresponding questions in the inquiry message.