The second choice is the right answer. We are given the future value (FV = $100), and we want to solve for PV. Finally, assuming that the interest rate is positive, and since this is only for 1 year, the future value must be higher than the present value (FV > PV). Since the fourth choice has FV < PV = 109.91, it does not fit. The second choice has FV > PV = 90.91, so it is the only logical choice.