Contractors LLC agrees to build a store for Discount Retail, Inc., at a specific location. Before construction begins, the local zoning law is changed to prohibit commercial buildings at that location. In this situation​ Select one:
a. ​the local zoning authority is in breach of contract.
b. ​the contract is discharged.
c. ​Discount must compensate Contractors for its lost profit.
d. ​Contractorsis in breach of contract.