The correct answer is: C. Solar wind.
The solar wind is a stream of charged particles from the sun that travel through space at high speeds. It is made up of protons and electrons, and it can reach speeds of up to 1 million miles per hour. The solar wind is constantly flowing out from the sun, and it can affect the Earth’s atmosphere and magnetic field.
Radiation is a general term for energy that travels in waves or particles. It can be harmful to humans, and it can come from a variety of sources, including the sun, nuclear power plants, and medical devices.
The aurora is a natural light display in the sky that is caused by the collision of charged particles from the sun with the Earth’s atmosphere. It is also known as the northern lights or the southern lights.
Solar flares are sudden eruptions of energy from the sun. They can cause geomagnetic storms on Earth, which can disrupt power grids and communications.
I hope this helps!