Big Dig LLC makes an offer to perform an excavation and related tosks for Commercial Developmens Corporation, but due to a substantial mathemotical mistake, significantly underprices the work. Commercial accepss the offer. Data Big's best deferse ogoinst entorcement of the contract is that Commercal knew a. a mistake of value supports the cancellation of contract. b. the price was below the prices of comparable services. c. a bilateral mistake supports the carleliation of a contract.

d. untateral mistake supports the caricellotion of a contrath