solve A only Step by Step

I included the full answer please solve branch A step by step

IRR = 12.83% 16.40% 16.13% 5.88% 15.36% 7.71% ERR = 11.54% 14.15% 12.53% 7.43% 12.09% 8.90% A, B, C, and D are recommended for investment

rmine which of the independent (nonrepeating) investment opportuni in the accompanying table are economically worthwhile study period of 5 years, and (a) the IRR method, (b) the ERR method ities shown %, a 6-5. Dete . Use a MARR of 10 Cash flows for investment opportunity EOY A 0 -$10,000 -$5,000 $8,000-$12,000 -$6.000 -$15,000 2,000 1,000 3,000 5,000 1,000 4,500 2,000 1,500 3,000 5,000 1,500 4,500 2,000 2,000 5,000 6,000 2,000 4,500 3,000 2.500 3,000 0 2,500 4,500 0 3,000 0