Answer: A reasoning conducted or assessed according to the strict principles of validity.
At the moment when Jane, sister of Elizabeth Bennet, arrived in Netherfield with pneumonia and Elizabeth took care of her, a fact that provoked the admiration of Mr. Darcy that during a dance in the town of Meryton, Bingley suggested that he take her out dance but he declined to consider it beautiful enough. However, after several days, Mr. Darcy's interest grows as does Elizabeth's anger with him over his constant arguments.
Answer: D) Tone.
Explanation: The tone of a poem, a story or even a sentence is the attitude of the text (the author's or speaker's attitude) towards the subject, theme, audience or even the characters. There are many differents kinds of tones: happy, sad, angry, positive, negative, objective, subjective, etc. According to that definition, the correct answer is the corresponding to option D.
The answer is C. Hope I helped!