The term 'future value' refers to the worth of an investment at a future date after accounting for interest. For a $100 investment today, the future value will be the amount it grows to in one year at the given interest rate.
The term "future value" refers to the value of an investment at a specified time in the future, considering the interest earned over that period. When you deposit $100 today in a savings account, the future value is the amount your investment will be worth one year from now, assuming a certain interest rate.
In contrast, the "present value" of an investment is what a future amount of money is worth in today's terms, given a specified rate of return. The "principal amount" is the initial amount of money invested or borrowed before interest. The "discounted value" calculates the present value of a future payment, considering the time value of money. Lastly, "invested principal" refers simply to the initial amount of money put into the investment. Therefore, the correct answer to the question is a) future value.