Which Continuous Variable Is Least Likely to Be Skewed to the Right

Multiple Choice

Which continuous variable is least likely to be skewed to the right by high values?

A) Annual incomes of n passengers on a flight from New York to London
B) Weekend gambling losses of n customers at a major casino
C) Accident damage losses by n renters of an auto rental company
D) Cost of a plain McDonald's hamburger in n U.S.cities