Answer :
Answer:
The answer is A.
Explanation:
In the example given in the question, it is stated that the builder made changes in the plan to put the vent for the heating system in its place. If this is not stated in the contract that Sue and Kevin Kellman signed for the construction of the cabin, they may not have to pay for the cabin because of the material breach which is used when there is under performance or failure with respect to the terms on the signed contract.
I hope this answer helps.