What can the reader infer about Mr. Dombey and his wife's relationship by her reaction of surprise to his addressing her as "my dear"? A) that Mr. Dombey is usually formal and distant to his wife B) that Mr. Dombey has a passionate relationship with his wife C) that Mr. Dombey is quite sentimental and loving to his wife D) that Mr. Dombey always addresses his wife with sweet nicknames