how do you solve this on finance calculator (BA II Plus)

23. You need a new oven for your bakery. Your current oven is worn out so you are trying to decide which one of two ovens to buy as a replacement. Whichever oven you purchase will be replaced after its useful life. Oven A costs $20,000 and costs $2,500 a year to operate over a 7-year life. Oven B costs $23,000 and costs $1,500 to operate over a 6-year life. Given this information, which one of the following statements is correct if the applicable discount rate is 12 percent? A. The equivalent annual cost of oven A is $6,436 B. The equivalent annual cost of oven Bis -$7,109. c. Oven B cuts the annual cost by $187 as compared to oven A D. Oven A cuts the annual cost by $212 as compared to oven B