If Unforeseen Conditions Cause a Partial Inability to Make Delivery

Multiple Choice

If unforeseen conditions cause a partial inability to make delivery of the goods and thus make performance impracticable,then:

A) the seller is readily excused from making delivery.
B) the seller can unilaterally annul the contract.
C) the seller must allocate production in any fair and reasonable manner among his customers.
D) the buyer is required to fully take the risk of loss.