Not only had household production waned, but technological improvements

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Not only had household production waned, but technological improvements were rapidly changing the rest of domestic work. Middle-class homes had indoor running water and furnaces, run on oil, coal, or gas, that produced hot water. Stoves were fueled by gas, and delivery services provided ice for refrigerators. Electric power was available for lamps, sewing machines, irons, and even vacuum cleaners.

According to the passage, what kind of fuel was used in a stove in a typical middle-class household?

oil

coal

gas

wood

Giải thích

Đáp án C

Thông tin trong bài: "Middle-class homes had indoor running water and furnaces, run on oil, coal, or gas, that produced hot water. Stoves were fueled by gas, and delivery services provided ice for refrigerators." (Các ngôi nhà trung lưu có nước sinh hoạt và lò sưởi trong nhà, chạy bằng dầu, than hoặc khí đốt, tạo ra nước nóng. Bếp được cung cấp nhiên liệu bằng gas và các dịch vụ giao hàng cung cấp đá cho tủ lạnh.)