Which of the Following Is the Best Description of the Rule

Multiple Choice

Which of the following is the best description of the Rule of 72?

A) The Rule of 72 tells how what an investment is worth when interest rates are expected to double.
B) The Rule of 72 tells how what interest rates are when an investment is expected to triple.
C) The Rule of 72 tells how long it takes an investment to triple at a given interest rate.
D) The Rule of 72 tells how what interest rates are when an investment is expected to double.
E) The Rule of 72 tells how long it takes an investment to double at a given interest rate.