Answer: The answer is Keywords.
Explanation: Keywords are the words and phrases in a particular website that make it possible for people to be able to find the website when using search engines.
For example, typing "interview questions" into a search engine will bring up a bunch of websites who have used the keywords "interview questions" in their website.
Therefore, in order for Donald in the scenario above to optimize search engine results, he should incorporate important keywords that pertain to the news release that are to be distributed.