25. For confidence and reliability in the measurement of fair value, FASB requires the use of Fair Value Hierarchy of inputs. List and describe the 3-Levels of inputs associated with the Hierarchy: 26. One of the inventory cost valuation methods is not permissible under IFRS. Which is it? a. The average cost method b. Last-in-First-Out (LIFO) method C. FIFO method d. Fair Value method e. None of the above