Answer:
D. the name of the search engine you used to find the site
Explanation:
When you do an online cite, most importantly in a paper, it should have:
-The name of the cite you took the information from
-The year of published
-The name of the author(s)
-The date you looked it
However, the name of the search engine you used to find the site is not necessary, only information about the site itself is needed.