Suppose a firm has two business options to choose from and has asked you, a Business Mathematics student, to help it make a decision. Option "A" requires an immediate cost of $20,000 along with "upgrade costs" of $4,000 in year 3 and $7,500 in year 6. The returns from these investments begin in year 2 and are estimated to be $2,000 per year for 3 years, $4,000 per year for the next 3 years, and then $8,000 in years 8 and 9, respectively. The only return in year 10 is a residual value of $6,000. Option "B" requires a cost today and in years 1 and 2 of $8,000 and has estimated returns beginning in year 4 and ending in year 10 of $6,000 per year. There will also be a residual value of $5,000 in year 10. Using Excel's IRR function, find the Rate of Return for each of the two investment options available to the business based on the information given. Assume the business's expected return on investment is 19 percent. Which option would you recommend? The rate of return on option A is 3%. (Round to the nearest whole number as needed.) The rate of return on option Bis (Round to the nearest whole number as needed.) %. should be recommended to the business because