5. Based on Problem 11-54 Western Slopes Coal Company expected to produce 1,800,000 tonnes of coal annually for 15 years. The deposit cost $30 million to acquire. The annual gross revenues are expected to be $14.50 per tonne, and the net revenues are expected to be $2.75 per tonne. (a) Compute the annual depletion allowance using a cost depletion method based on the recoverable product, rounded to the nearest dollar. (b) Compute the annual depletion allowance using both possible options: a percentage depletion method or using a taxable income limitation basis. (c) Which of these two percentage depletion options is allowed to be applied, under law, and why? Show your calculations. Round answers to the nearest dollar