The Deep Hole Company Recently Paid $2,400,000 for a Mine

The Deep Hole Company recently paid $2,400,000 for a mine capable of producing 6,000 tons of ore. In the first year, Deep Hole extracted 600 tons of ore from the mine and immediately sold it at $500 per ton.

A) Deep Hole's sales revenue account balance increased by $240,000 immediately after its ore sales.
B) Deep Hole's cost of goods sold account balance increased by $300,000 immediately after its ore sales.
C) Deep Hole earned $300,000 gross profit related to its ore sales.
D) Deep Hole's accumulated depletion account balance at the end of Year 1 was $240,000.
E) The book value of Deep Hole's mine at the end of Year 1 is $2,100,000.