Final answer:
The purpose of the subsequent events surrounding Mrs. Dubose is to emphasize the importance of courage in the narrative.Correct option is B.
Step-by-step explanation:
The purpose of the subsequent events surrounding Mrs. Dubose in the story is to emphasize the importance of courage in the narrative (option B). Through Mrs. Dubose's character, the author shows Jem what he considers real courage. Despite her racist views, Mrs. Dubose demonstrates immense courage by fighting her addiction to morphine, which Jem sees as a lesson in facing challenges head-on.