Write a letter to your friend in another school telling him about the preparations your school is making towards her forthcoming silver jubliee celebration

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.

many is the pronoun that is used in this sentence. many is a quantifier that determines the amount of discoveries. when we use quatifiers followed by nouns, they act as determiners, but when they are used without a noun, as it is this case, they are pronouns.