Read the sun's illumination map of the earth on a certain day (as shown in the picture) and answer questions 26 ~ 28. On this day, the solar terms shown in the picture are () A. Equinox B. Summer solstice C.

When the sun shines directly at the equator, it is the vernal equinox (the date is around March 2 1 day) or the autumn equinox (the date is around September 23) in the northern hemisphere; When the sun shines directly on the Tropic of Cancer, it is the summer solstice in the northern hemisphere (the date is around June 22); When the sun directly hits the tropic of Capricorn, it is the winter solstice in the northern hemisphere (the date is around 65438+February 22).

Reading the map shows that the latitude of direct sunlight at this time is the tropic of Capricorn, which is the winter solstice in the northern hemisphere.

Therefore, choose: d.