Read this sentence from the excerpt. What role does this sentence play in the passage? Something like a reluctant smile, rather rusty from long disuse, mellowed Marilla's grim reaction. A It shows that Marilla understands why Anne is unhappy. B It shows that Marilla is beginning to think the mistake is funny. C It shows that Marilla has decided what to do about the mistake. D It shows that Marilla's attitude toward Anne is starting to change.