Please choose the correct answer to the question: Someone is driving at night. The day was warm, but now the night is cool, and there is a lot of mist that is difficult to see through. The mist is prevalent because

Answer1: humidity from the day condensed as night progressed Answer2: warm air is usually found in daytime Answer3: it is always misty at night Answer4: the cool air makes everything feel warm

Answer format: answer1/answer2/answer3/answer4