Under IFRS, when an entity chooses the revaluation model as its accounting policy for measuring property, plant, and equipment, which of the following statements is correct?

a. When an asset is revalued, the entire class of property, plant, and equipment (such as Land) to which that asset belongs must be revalued.

b. When an asset is revalued, it is reported on the balance sheet at its current replacement cost.

c. Revaluations of property, plant, and equipment must be made at least every three years.

d. The revalued assets must be reported in a special section of the balance sheet separate from those assets measured using the cost model.