Question

what is the winter solstice?
the shortest day of the year with the least daylight
the longest day of the year with the most daylight
the days of the year when daylight and darkness are equal

Explanation:

The winter solstice occurs when one of the Earth's poles has its maximum tilt away from the Sun. In the Northern Hemisphere, this results in the shortest period of daylight and the longest night of the year. The option "the longest day of the year with the most daylight" describes the summer solstice, and "the days of the year when daylight and darkness are equal" describes the equinoxes.

Answer:

the shortest day of the year with the least daylight