Choose the most accurate answer

Select one: a. Ordinary annuity is a type of annuity that assumes that payments occur at the end of the periods b. Perpetuity due is a type of annuity that assumes that payments occur at the end of the periods c. Annuity due is a type of annuity that assumes that payments occur at the end of the periods d. Ordinary perpetuity is a type of annuity that assumes that payments occur at the end of the periods