Knowledge Check 01 Which of the following statements about accounting for gains and losses in defined benefit plans are true? (Select all that apply.) Check Ail That Apply IFRS requires the use of rate for "his grade corporate bonds" to determine the interest cost on the defined benefit obligation and the difference between the actual and expected returns to defermine the interest revenue on the plan assets. IFRS requires the use of rate for "high grade corporate bonds" to determine both the interest cost on the defined benetit obilgation and the imerest revenue on the plan assets. The gain of loss on plan assets under US. GAAP is the difference between the actual and expected retarns on plan assets