Where does the sun remain above the horizon all day (never setting) on the december solstice? where does the sun remain above the horizon all day (never setting) on the december solstice? only at the equator only on the antarctic circle (latitude 66.5°s) only at the north pole everywhere between the arctic circle (latitude 66.5°n) and the north pole everywhere between the antarctic circle (latitude 66.5°s) and the south pole only at the south pole.

Everywhere between the Antarctic Circle (latitude 66.5°S) and the South Pole

Explanation:

During the December solstice, also known as the winter solstice, the Antarctic Circle is exposed to the Sun. This occurs because of the tilting of the Earth, which results in one hemisphere having more sunlight in one half of the year, and then the other hemisphere to have more sunlight in the other half of the year. As the tilting is around 23 degrees, this means that everywhere from the Antarctic Circle to the South Pole receives constant daylight for at least 24 hours, or rather one day, which happens during the December solstice. The amount of continues sunlight increases as the latitude increases, and the South Pole actually gets six months of continuous sunlight starting from the December solstice and until the June solstice.

beaches, climate, clear water, zinc.

a and b because with the other three, they simplify to something else.