Final answer:
Groceries are a variable expense for Tiffany because the amount spent can change based on what is purchased. Fuel is also variable as it depends on travel frequency.
Step-by-step explanation:
The question concerns identifying variable expenses for an individual named Tiffany. Variable expenses are costs that can vary depending on usage or consumption in a given period. In Tiffany's case, the options provided are Rent, Car loan payment, Groceries, and Fuel. Rent and car loan payments are typically fixed expenses as they do not change from month to month. On the other hand, Groceries and Fuel are variable expenses as their costs fluctuate based on how much is consumed.
Out of the options given, Groceries is one of Tiffany's variable expenses. The cost of groceries can change each week or month, depending on what is purchased. Fuel can also be considered a variable expense as the amount spent on fuel can fluctuate depending on how much Tiffany travels in her car.