Any help with this economics for engineers problem would be great thanks

Homework: Chapter 6 - Comparison of Alternatives Score: 0 of 1 pt 3 of 8 (6 complete) Problem 6-11 (algorithmic) Which alternative in the table below should be selected when the MARR = 6% per year? The life of each alternative is 10 years. HW Score: 59.9%, 4 Question Increment Considered A Investment cost A (Annual Revenues less Costs) IRR on A Investment Cost (A-DN) $700 $142 (-A) 500 BBS111 AC-B) $1,100 $160 A(D-C) $1,600 $160 15 5% 17.9% The IRR on A(C-B) is %. (Round to one decimal place.)