Final answer:
Using the cost depletion method, the depletion deduction for Louise in 2017 is calculated as $150,000, based on the cost per unit of the gravel interest and the number of units sold that year. Correct answer is $150,000.
Step-by-step explanation:
The student's question relates to the calculation of depletion deduction for a gravel interest using the cost depletion method.
By dividing the cost of the property ($1,500,000) by the total recoverable units (100,000), we determine the cost per unit, which is $15. To calculate the depletion deduction for the year, we then multiply the cost per unit by the number of units sold in that year (10,000), which results in a deduction of $150,000 ($15 x 10,000).