The Board of Education in a city introduced a long-term disability plan for its employees. The plan provides for monthly payments equal to 85% of regular salary starting at the end of the first month of disability. Assume the plan is subject to annual compounding. Classify the annuity by the (a) term; (b) date of payment; and (c) conversion period. (a) Based on the term, the annuity is (b) Based on the date of payment, the (c) Based on the conversion period, th a contingent annuity. a perpetuity. an annuity certain. (b) Based on the date of payment, the annuity is (c) Based on the conversion period, the annuity is an annuity due and deferred. an annuity due. an ordinary annuity. an ordinary annuity deferred. (c) Based on the conversion period, the annuity is a general annuity. a simple annuity