In which of the following areas does the IASB allow firms to choose between a benchmark treat¬ ment and an allowed alternative treatment? LO4

a. Measuring property, plant, and equipment subsequent to acquisition.

b. Presenting gains and losses as extraordinary on the face of the income statement.

c. Recognizing development costs that meet criteria for capitalization as an asset.

d. Recognizing past service costs related to pension benefits that have already vested.