A is an example of direct characterization
Answer:
A thesaurus lists all possible synonyms for a word that could have to do with the original word's actual or contextual meaning. A thesaurus simply makes you aware of other words that mean the same thing as your original word which you will be using synonyms.
The central idea is what the main thing. For this, I think the central idea is simply Cactuses.
I'm not sure what another supporting detail can be, but if there's a back side, or another page about cactuses, I can sure help! But if that's the only side, ask your parents. xD
