This question has options. Select from options: Read this fact: "fog is formed by water vapor condensing in the air"

Now answer this question: "It's too foggy to see more than two feet on a highway. This is because of"

Pick your answer from:
[-] ash from a volcano.
[-] vapor of H2O condensed in the air.
[-] helium vapor in the air.
[-] a forest fire nearby.
vapor of H2O condensed in the air