Why the South Poles is in darkness during the southern hemisphere's winter?

Question

Why the South Poles is in darkness during the southern hemisphere's winter?

Answer 1

Its because of the rotational axe of the earth relative to the sun.

http://en.wikipedia.org/wiki/Season

Answer 2

The Earth's tilted on its axis in such a way that the North Pole is almost constantly facing the sun and the South Pole is facing away at such times, resulting in the 6-month-long ( or however long it is ) period of sunlight/no sunlight.