Please solve without excel table. I want transactional solution!!!!!!

The five alternatives shown here are being evaluated by the rate of return method. Incremental Initial ROR Investment, versus Rate of Return, % Alternative $ DN, % A B C D E -25,000 27.3 9.4 35.3 25.0 B -35,000 15.1 0 38.5 24.4 -40,000 13.4 46.5 27.3 D -60,000 25.4 6.8 E -75,000 20.2 A 9.6 a. If the alternatives are mutually exclusive and the MARR is 26% per year, which alternative should be selected? b. If the alternatives are mutually exclusive and the MARR is 15% per year, which alternative should be selected? c. If the alternatives are independent and the MARR is 15% per year, which alternative(s) should be selected