You want to use proper etiquette and be polite, do not call them by their first name and always refer to them as Mr., or Mrs. Use an extended vocabulary and do not talk about yourself. If you have proper grammar, depending on the job, that can be seen as intelligence. And always use an appropriate closing that is respectful. Such as, Sincerely, John Doe.
<span>Best Answer is
(D)</span>
Any<span> materials not protected by copyright, patent laws or trademark are referred to as copyright. Generally, the public owns these works, and anyone is allowed to use public domain works without obtaining permission. There are various common ways that these works may end up arriving in the public domain. One of those ways includes the expiration of copyright. The copyright owner may also fail to follow renewal rules that govern copyright. </span>The copyright owner may as well decide to place his or her works deliberately in the public <span>domain.</span>
I dont know sorry if i wasted this answer
