The correct answer is:
A) You know that your car will need a tune-up and other routine maintenance every winter, so you save a little money every month in preparation and use the saved money to pay when winter comes around.
Step-by-step explanation:
An occasional expense is one that does not happen every month. Winter maintenance would count as occasional. Saving a little money each month to make sure you have enough to perform winter maintenance is using financial reserves for occasional expenses.