The answer is the first one, you must always cite your sources, even if you have not directly quoted them. It also adds credibility to your work (this is not the only reason, it is merely an incentive)
A.
explanation: it uses a simile.
Exposition<span> is a literary device used to introduce background information about events, settings, characters etc. to the audience or readers.</span>
i think how to do a play in 5 days, the way to save for college, how i created a business
this is because it is telling you how to do something..
i hope i helped!