please answer all the questions immediately thankyou

16. Past and current service cost are some of the components of the service cost. * (1 Point) TRUE FALSE 17. Demographic actuarial assumptions deal with all of the following excepti (1 Point) Disability and early retirement Mortality both during and after employment Expected rate of return on plan assets Rate of employee tumever 18. Actuarial assumptions are necessary and required in the measurement of all types of post- employment benefits. * (1 Point) TRUE FALSE 19. A formula is used in defined contribution plan to derive the amount of benefit the employee will receive. * (1 Point) TRUE FALSE 20. It is the excess of the fair value of plan assets over the present value of the projected benefit obligation.* (1 Point) Unamortized past service cost Excess of fair value over PBO Surplus Accrued benefit cost