Which one of the following is a correct definition? A perpetulty is a series of unequal payments which occur in even time intervals over an unlimited period of time. O An ordinary annuity is a infinite stream of equal payments which occur at the end of each time period. A perpetuity is a finite stream of equal payments. An ordinary annuity is a finite stream of equal payments which occur at the end of each time period. An annuity due is an infinite stream of equal payments which occur at the beginning of each time period