can someome please help me with this question?

562 Points + 2 bonus points) device can be installed to reduce cost. It has Device A: Costs $10000 and saves $3200 annually needs to be replaced every 5 years nas no salvage value at the end of 5 years useful life. Two options. nevie B Costs $13500 and saves $4000 the year and increases $400 annually, nccas iven MARR = 10%, and a service life of 10 years which device should be recommended and increases $400 annually needs to be replaced every 10 years. (1) CFD (I point) E (2) Which device should be recommended (3 points)