Answer:
Option D is correct one.
The buffer in a bad-news message is a statement that reduces shock or pain and encourages the receiver to continue reading
Step-by-step explanation:
A buffer is often used in a business communication in delivering a bad or negative news. To lessen the impact of the negative news and bring the reader into a positive frame of mind before he or she actually gets to the bad news. Its beneficial to have buffer to lessen the impact.