Explanation:
The Arctic circle is a line of latitude that is 66.5 degrees north of the Equator. It marks the northernmost point where the sun can be seen at midnight on the summer solstice and the southernmost point where the sun cannot be seen at midnight on the winter solstice. The Southern Ocean is the body of water that surrounds Antarctica. It is located entirely in the Southern Hemisphere, so the Arctic circle does not cross it.