47. “Does your house smell pine fresh? If so, you might want to open a window.” What is NOT the reasoning behind this statement? (A) To enjoy more fresh pine smell, you might want to open your window. (B) You might want to open a window so that the fragrance could disperse quickly. (C) The manmade smell of pine creates small amounts of formaldehyde. (D) Chemicals might build up at home, which is a concern.