a cloud a rainbow a sunset a tornado
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: When dense, cold air pushes beneath warmer atmospheric air, the lighter, warmer air rises. As this air rises into the atmosphere, it cools and some of the water vapor in it condenses. Which of the following will most likely form as this occurs?
Possibilities:
- a cloud
- a rainbow
- a sunset
- a tornado

a cloud