How does analyzing the keywords in a nonfiction text give the reader an idea of the type of text structure the author used to build the text?

i'm on the same lesson : / i really don't want to do it..

i could of w this question but i don't see a " passage " .

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sorry ! ):

the answer is b:   the american composer and singer bob dylan composed many songs, by which he is very famous and considered one of the mosts influencial artists of pop music. he was awarded the nobel prize in literature for his type of poetry. but the huge impact his songs had are due to both lyrics and music, without which the message would lose strength.