Which of the following phrases in the fifth paragraph indicates the fridge's negative effect on the environment A: "Hum away continuously". B: "Climatically almost unnecessary". C: "With mild temperatures". D: "Artificially-cooled apace".

Which of the following phrases in the fifth paragraph indicates the fridge's negative effect onthe environment A: "Hum away continuously". B: "Climatically almost unnecessary". C: "Artificially-cooled space." D: "With mild temperatures."