14. Which one of the following best denes an annuity? A. a stream of increasing annual dividend payments over an innite period of time B. a stream of decreasing payments occurring at regular intervals for a xed period of time C. a level stream of payments occurring at equal intervals of time D. a level stream of payments occurring at random intervals for an innite period of time E. a series of equal payments occurring at random intervals over a xed period of time