Read these lines: "The cold within him froze his old features, nipped his pointed nose, shrivelled his cheek, stiffened his gait; made his eyes red, his thin lips blue. He carried his own low temperature always about with him; he iced his office in the dog-days; and didn't thaw it one degree at Christmas." What is the writer doing with the language of cold?

1. The cold is placed inside the man from the first words, since it is the cold within him that does the work. 2. That inward cold then shows on the outside, in a nipped nose, a shrivelled cheek and blue lips. 3. It spreads further still into the room, which he ices even in the hottest days of summer. 4. Weather cannot behave that way, so the cold cannot be the season, which rules out the first choice. 5. Christmas fails to thaw it by a single degree, so it is not a heating problem either. 6. Illness is never mentioned and would not explain the office. 7. So the cold is a way of making an unfeeling nature visible, option D. _Source: Charles Dickens, A Christmas Carol (1843), Stave I Marley's Ghost_