​Contractors LLC Agrees to Build a Store for Discount Retail

Multiple Choice

​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

A) ​Contractors is in breach of contract.
B) ​the local zoning authority is in breach of contract.
C) ​the contract is discharged.
D) ​Discount must compensate Contractors for its lost profit.