Answer the following question given this paragraph: 

Ozone near the ground harms human health. But the ozone layer in the stratosphere protects us from solar rays. That’s why people were alarmed in the 1980s to learn that there was a hole in the ozone layer.


Q: What does ozone in the stratosphere protect us from?

 Choices:

- comets

- acid rain

- solar traces

- solar rays

A:
solar rays
