Note on views of art with some more questions you could ask

i think that it is letter d.

you can't answer this. more information is needed.

what is the sentences

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.