The answer i believe is "what"
C is the answer ! hope this helps ! Mark brainliest plzzzzz !
Its c or at least I think it is A parallel structure is used when two or more elements in a sentence<span> are equal in importance. To show that the elements are equal, the elements are usually joined by the coordinating conjunctions.
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It can be called referencing, where you in/text reference a source or text you used to gain the information, but you rewrote it in your own words so there is a difference between them.