The correct answer is (b), Ultra-Violet rays.
Ozone is a molecule made up of three oxygen atoms. It is found in the stratosphere, which is the layer of the atmosphere that is about 10 to 50 kilometers above the Earth’s surface. The ozone layer absorbs most of the Sun’s ultraviolet radiation, which is harmful to life on Earth.
Gamma rays, X-rays, and other types of high-energy radiation can also damage living things, but they are not absorbed by the ozone layer. These types of radiation can travel through the atmosphere and reach the Earth’s surface.
The ozone layer is important because it protects life on Earth from the harmful effects of ultraviolet radiation. Without the ozone layer, life on Earth would be very different.