Answer:
A. Medallions' lost profit on the deal.
Step-by-step explanation:
Since Melvin's Decorations breached the contract they had with Medallions, the non breaching party is entitled to sue for compensatory monetary damages. Courts will generally assign compensatory damages that cover the losses incurred due to the contract breach, i.e. the amount of money that medallion would have made as a profit if Melvin's decoration had purchased and paid for the medallions.