This week on Idaho Photo is dedicated to aircraftOntario , Oregon Air FairThis last Saturday I had a chance to get away from work and relax at the Ontario Air Fair . I had never been to one and what a lot fun it is for free ! No admission was charged , I did donate to the parking fund though .

Question: What may be a valid fact about the air fair ?
Answer: It was held on a weekend day .Cars must pay a parking fee .None of the above choices .I had a good time there previously .