Overlooking and judging solar terms

Solutions; The ocean in the picture is near the polar region, which is the Arctic Ocean. Looking down from the North Pole, the rotation direction of the earth is counterclockwise, A is a dark line, 180 is located in the center of the night, and the local time is 0 o'clock. When the longitude of 180 coincides with the longitude of 0 o'clock, the whole world is on the same day.

Therefore, choose: d.