Answer:
Axial skeleton is the correct answer
Id say “A” :) because nothing bad is happening they’re just waiting for the lottery
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.
i’m pretty sure the answer is C