Which of the following is incorrect

a. Exclusion clauses are terms in an agreement that attempt to limit or negate the liability of one of the parties to the contract if they are in breach.

b. An exclusion clause must be a warrant of the contract.

c. If the exclusion clause is contained in a signed document, the plaintiff will be bound by the clause unless it can be proven that the contents of the document were misrepresented to the plaintiff or the document appeared to be non-contractual.

d. If the exclusion clauses are contained in unsigned documents such as receipts and tickets the courts are likely to decide that the ticket or receipt is not a contractual document and therefore the terms it contains have no contractual effect.