Choice D is the best answer because Akira clearly treats Chie with respect, including "bow[ing]" (line 26,"As ... down,") to her, calling her "Madame" (line 31,"Madame... disruption"), and looking at her with "a deferential peek" (line 34,"He... face"). Akira does not offer Chie utter deference, though, as he asks to marry Naomi after he concedes that he is not following protocol and admits to being a "disruption" (line 31,"Madame... disruption").
Choice A is incorrect because while Akira conveys respect to Chie, there is no evidence in the passage that he feels affection for her. Choice B is incorrect because neither objectivity nor impartiality accurately describes how Akira addresses Chie. Choice C is incorrect because Akira conveys respect to Chie and takes the conversation seriously.