Answer:
Effective direct reply letters usually include a subject line, provide explanation and additional information.
Explanation:
Effective direct reply letters recognize the subject contained in the subject line as well from previous correspondence.
Effective direct reply letters arrange information in order of priority by listing the most important information first, and make a list of the responses to the questions of the customers in accordance to the order the questions are asked. Graphic devices are employed to ensure that the message can be easily read, and provide assistance to customers by giving then clear reference that will enable them to find additional information.
Finally, a forward-looking statement is usually employed by effective direct reply letters to end pleasantly.