Answer:
The correct option is A ring around the Sun caused by particles in the air.
Step-by-step explanation:
Diffraction occurs when waves bend around small obstacles, or when waves spread out after they pass through small openings. The same thing we see when there is a small opening in a wall and sunlight comes into it. It also occurs with all waves, including sound waves, water waves, and electromagnetic waves such as light that the eye can see. The same phenomenon occurs when we see a ring around the Sun caused by particles in the air.