Careful Consulting Company has an unfunded postretirement benefit plan. On December 31, 2021, the following data were available concerning changes in the plan's accumulated postretirement benefit obligation with respect to one of Careful's employees: APBO, January 1 Interest cost ($33,428 x 10%) Service cost (95,700 1/22) APBO, December 31 $33,428 3,343 4,350 $41,121 Required: 1. Over how many years is the expected postretirement benefit obligation being expensed? 2. What is the expected postretirement benefit obligation at the end of 2021? 3. When was the employee hired? (Round your answer to 1 decimal place.) 4. What is the expected postretirement benefit obligation at the beginning of 2021? (Round your final answer to the nearest whole dollar amount.) 1. Number of years 2. Expected postretirement benefit obligation 3. The employee was hired 4. Expected postretirement benefit obligation years years before 2021