I need one response to the answer below: ( it is a discussion post)

What are defenses to enforcement of a contract?

Defenses to enforcement include a variety of things. These can come in forms of duress, undue influence, impossibility, and frustration. Fraud is also included in these. Duress is known to be some sort of threat presented if the party doesn't sign a contract. Impossibility comes when it's just simply impossible for one to sign off on a contract. An example of duress would be someone handcuffing you and not letting you go until you sign the contract. The contract therefor wouldn't hold any power against you because you signed it while being in duress. Undue influence means when a certain person may hold more power or have control of a situation/contract. Frustration is used in the sense of a "contract being frustrated." This meaning things are not going as planned within a contract.