Problem 10 A company with a MARR = 10% is considering the following options: Option A Initial Cost $2,100,000 Annual Benefit $360,000 12 Years The incremental Rate of Return (Air) between the two options is: a. Between 9% and 10% b. Between 10% and 12% c. Between 12% and 15% d. Between 15% and 18% Option B $1,680,000 $285,000 12 Years Life