A substantial one of these will keep you from going upside down on your loan, that is, owing more on your car than it is worth: a) Finance Charges b) Insurance c) Down Payment d) Interest

The answer for this would be D interest. This is because interest is how the bank that gives you a loan makes money. A profit of somewhat. An example would be getting a car that is 7,000 and with the interest that the bank has in total you would spend 8,200. That extra money you paid was the interest.