Ansel,a Sugar Manufacturer,agrees to Sell Keith 10,000 Pounds of Sugar

Ansel,a sugar manufacturer,agrees to sell Keith 10,000 pounds of sugar at the "usual price." A shortage forces the price of sugar up and Ansel charges Keith nearly 50% more for the sugar.In response,Keith disaffirms the contract.Which ruling is correct?

A) The modification is enforceable because Ansel has the right to unilaterally modify the contract.
B) The Code would confirm the contract and assign a price reasonable at the time of shipment.
C) Keith would be permitted to void the contract since he has not agreed to the price increase.
D) This contract is not covered by the Code,therefore,the common law applies and the modification is unenforceable.