For the cash flows in the previous problem, suppose the firm uses the NPV decision rule. At a required return of 11 percent: Should the firm accept this project? What if the required return was 25 percent? Year Cash Flow 0 -$28,000 1 12,000 2 15,000 3 11,000 Select one: a. yes; no b. no: yes c. yes; yes d. no; no