Answer:
B. Depletion will be $950,000 during 2018
Explanation:
Cost $10,000,000
Residual Value ($500,000)
Cost to be depleted $9,500,000
No. of Carats to be extracted over the life of mine 500,000
Per carat depletion (9,500,000/500,000) $19
Depletion for the year 2018 $19*50,000=$950,000
This will be deducted from revenue as depletion for the year.So option B is correct.