A coal mine cost $1,005,000 and is estimated to hold 54,000 tons of coal. There is no residual value. During the first year of operations, 13,000 tons are extracted and sold. Calculate depletion per unit. (Round your answer to the nearest cent.) 2 O A. $9.31 OB. $18.61 O c. $4.65 OD. $13.96 Dec Click to select your answer. 2