China Naming Network - Almanac query - Weather forecast in Dafeng District, Yancheng City, Jiangsu Province
Weather forecast in Dafeng District, Yancheng City, Jiangsu Province
As can be seen from the figure, the lowest temperature in Dafeng area is -4℃, the highest temperature is 4℃, and the temperature difference between the highest and lowest temperatures on that day is 4℃-(-4℃) = 8℃.
So choose D.