Dean has earned $71,000 annually for the past six years working as an architect for WCC Inc Under WCC's defined benefit plan (which uses a seven-year graded vesting schedule) employees earn a benefit equal to 40 percent of the average of their three highest annual salaries for every full year of service with WCC Dean has worked for six full years for WCC and his vesting percentage is 80 percent. What is Dean's vested benefit (or annual retirement benefit he has earned so far) Multiple Choice O $27040 556,800 573,632