The answer to this problem is Noun.
Answer:
B; it informs the audience
Explanation:
The Prologue does not merely set the scene of Romeo and Juliet, it tells the audience exactly what is going to happen in the play. The Prologue refers to an ill-fated couple with its use of the word “star-crossed,” which means, literally, against the stars.
A good reference for this is "The Five I's of Romanticism"
Imagination
Intuition
Individuality
Idealism
&
Inspiration
Could be wrong. But I think b