1-4: Interglobal Consolidated Useful Products Corporation has a defined benefit pension plan for its workers. On retirement at age 65, the plan provides 1.75\% of the 3-year final average salary for each year of service, up to a maximum of 60%. Exercises 1 to 4 are based on this DB plan. 1. Calculate the pension benefit that would be paid for the following years of service and last 3 years' salaries. a. 20 years; $42,045;$43,188;$45,657 b. 30 years; $42,045;$43,188;$45,657