Answer:
A To inform the reader about an annual music festival in chicago
Step-by-step explanation:
in the passage it states "This year marked the twenty-seventh year of the annual Chicago Blues Festival." "Multiple stages were set up throughout the park, in addition to a large selection of food and beverage vendors.As this year would have been the 100th birthday of blues legend Howlin’ Wolf, thefestival was dedicated to him. Though Howlin’ Wolf was originally from Mississippi, his recording career was spent in Chicago." This is an indication to let the reader know that the festival is being held as well as what it s and why its being held.