________. And they are certainly right. Sunscreen protects your skin from ultraviolet light rays. Too much ultraviolet is bad for your skin. If you spend a long time outside without any sunscreen on, you might get sunburn because of the ultraviolet rays.

• A. Ultraviolet light can get rid of bacteria in eggs and apple and make them safer to eat
• B. Your parents tell you to wear sunscreen when you're outside in the summer
• C. When we are outdoors, we are exposed to pollens and dust, and other irritants
• D. direct sunlight.