Answer:
C. title
Explanation:
Because if a article is called Plants and it's about Mammals it wouldn't make sense?
A. Keywords
cross out length and title because they have nothing to do with it you can tell by the keywords for example if your writing a research essay you would use different keywords
what story? if you can please copy and paste it so we can see it and try to help you.
How annoying her brother's behaviour is
it's is D, it's in the last paragraph.