Respuesta :
What is occurring to make the glass wet on the outside is that Water vapor in the air undergoes evaporation.
What is evaporation?
Evaporation is the process whereby the liquid pass into the vapor state.
That is why the glass is wet because it has loose water to the surrounding.
Therefore, option C is correct.
Learn more about evaporation at;
https://brainly.com/question/24258