What does describe the intended audience mean

Which statement best explains coelho's choice in the alchemist to have the boy work for the crystal merchant? it shows the reader what happens when one follows his or her personal legendit explains how the boy earns enough money to marry the merchant's daughter.it provides the reader with engaging details about the city of tangier.it demonstrates that the path to one's personal legend is not a straight and obvious one.

Which verb from is used to indicate the perfect progressive tense

Can someone me with this english question