Based on paragraph 19, what does the author means when she uses the word fancy

yes, it can be both.

- "the basic difference between keywords and subjects is that subjects (or "subject headings") have been predetermined, while keywords have not. a keyword is an easy place to start because you can use any word that seems to fit your search; this is called "natural language" searching."

the students want to see the great sphinx of giza, which is very popular with tourists.

i think it may be b, i'm not exactly too sure on this. but b seems to make more sense.