Which of the Following Agreements Is Likely to Be Too

Multiple Choice

Which of the following agreements is likely to be too uncertain to be enforced?

A) 'The supplier agrees not to accept offers from third parties during a six week negotiation period with the purchaser'.
B) 'The vendor agrees to sign the contract of sale, if the purchaser obtains a comfort letter from his bank'.
C) 'In the event of a crash in the market value of the product, the parties agree to renegotiate a new price in good faith'.