O'Malley's Salvage Company agrees to buy $40$ tons of scrap metal at $$100$ per fon from Hudson's Waste. When an unforeseen shortage of scrap metal suddenly develops, Hudson's Waste cannot fulfill the contract for less than $$2,000$ per ton. What is O'Malley's best defense for not performing the contract?

O'Malley's would be forced into bankruptcy if it performed.

Performance of the contract is commercially impracticable.

Performance in this case is impossible.

The covenant of good faith has been compromised.