Question Completion Status: QUESTION 9 1 point Which of the following statement best describes the concept of "compound interest" A. interest earned on an investment. B, the total amount of interest earned over the life of an investment OC. interest earned on interest D. none of them QUESTION 10 1 points You are recently interested in a retirement fund that requires you to deposit $4,000 every year, and you want to know how much you will receive from this fund when you retire. Which of following knowledge you will use to solve this question? A. Future value of a single payment B. Future value of an annuity Present value of an annuity . OD. Present value of a perpetuity