Answer the following question given this paragraph: 

Winter solstice for the Northern Hemisphere happens on December 21 or 22. The North Pole of Earth's axis points away from the Sun ( Figure below ). Light from the Sun is spread out over a larger area. With fewer daylight hours in winter, there is also less time for the Sun to warm the area. When it is winter in the Northern Hemisphere, it is summer in the Southern Hemisphere.


Q: What season is it in the southern hemisphere when it's winter in the northern?

 Choices:

- Winter

- Spring

- autumn

- summer

A:
summer
