The only word I'm seeing that could be an adjective is the word "old".
(Correct me if I'm wrong, thanks!)
Have a great day!
The answer which is an example of a theme with a dual nature is D. people who work hard learn values but may not prosper.
The other sentences are pretty linear and expected - a person works hard and is successful in life. D is somewhat different, which is why it has two natures, or a dual nature.
It’s great, But make sure to check your sentences and make sure there not run on.
