Which of the following actions wiling DECREASE the present value of an investment.

A. Decrease the interest
B. Decrease the future value
C. Decrease the amount of time
D. All of the above will increase the present value

To determine which of the given actions will decrease the present value of an investment, let's first understand what present value represents. The present value is the current worth of a future sum of money, considering the time value of money and potential interest earned or paid.

So, in order to decrease the present value, we need to reduce the current worth of the investment. Let's analyze each option provided and see how it affects the present value:

A. Decrease the interest: If we decrease the interest, it means that less interest will be earned or paid on the investment. As a result, the present value will decrease since there will be fewer future cash flow to be discounted back to the present.

B. Decrease the future value: If we decrease the future value, it means that the amount of money to be received or paid in the future will be smaller. Consequently, the present value will decrease because there will be less future cash flow to be discounted back to the present.

C. Decrease the amount of time: If we decrease the amount of time, it means that the investment period will be shorter. With less time available for compounding or discounting, the present value will decrease since the potential interest earned or paid will be reduced.

Considering the explanations above, we can conclude that options A, B, and C will all decrease the present value of an investment. Therefore, the correct answer is:

D. All of the above will increase the present value (incorrect).