Which is the following is incorrect option?

A

Within the Arctic and Antarctic Circles there is at least one day in the year during which the sun does not set and at least one day on which it never rises.

B

At the North Pole there is darkness for half the year.

C

At the summer solstice, the sun shines vertically over the Tropic of Capricorn.

D

The sun shines vertically over the Equator twice in the year.