Homeowner sues Norm's Old House Home Repair for breach of contract. The court determines that Norm's performance was not substantial. Does Homeowner have a duty to pay Norm's, thereby performing their side of the bargain? What duty does Homeowner have, if any?

Homeowner does not have a duty to pay, but does have a duty to mitigate damages.

Homeowner does not have a duty to pay and does not have to mitigate their damages.

Homeowner must still perform their side of the bargain and has a duty to mitigate damages

Homeowner must still pay but has no duty to mitigate their damages