<Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (September 2014) (Learn how and when to remove this template message) </Td> </Tr> <Table> <Tr> <Th> Contract law </Th> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Part of the common law series </Td> </Tr> <Tr> <Th> Contract formation </Th> </Tr> <Tr> <Td> <Ul> <Li> Offer and acceptance </Li> <Li> Posting rule </Li> <Li> Mirror image rule </Li> <Li> Invitation to treat </Li> <Li> Firm offer </Li> <Li> Consideration </Li> <Li> Implication - in - fact </Li> <Li> Collateral contract </Li> </Ul> </Td> </Tr> <Tr> <Th> Defenses against formation </Th> </Tr> <Tr> <Td> <Ul> <Li> Lack of capacity </Li> <Li> Duress </Li> <Li> Undue influence </Li> <Li> Illusory promise </Li> <Li> Statute of frauds </Li> <Li> Non est factum </Li> </Ul> </Td> </Tr> <Tr> <Th> Contract interpretation </Th> </Tr> <Tr> <Td> <Ul> <Li> Parol evidence rule </Li> <Li> Contract of adhesion </Li> <Li> Integration clause </Li> <Li> Contra proferentem </Li> </Ul> </Td> </Tr> <Tr> <Th> Excuses for non-performance </Th> </Tr> <Tr> <Td> <Ul> <Li> Mistake </Li> <Li> Misrepresentation </Li> <Li> Frustration of purpose </Li> <Li> Impossibility </Li> <Li> Impracticability </Li> <Li> Illegality </Li> <Li> Unclean hands </Li> <Li> Unconscionability </Li> <Li> Accord and satisfaction </Li> </Ul> </Td> </Tr> <Tr> <Th> Rights of third parties </Th> </Tr> <Tr> <Td> <Ul> <Li> Privity of contract </Li> <Li> Assignment </Li> <Li> Delegation </Li> <Li> Novation </Li> <Li> Third - party beneficiary </Li> </Ul> </Td> </Tr> <Tr> <Th> Breach of contract </Th> </Tr> <Tr> <Td> <Ul> <Li> Anticipatory repudiation </Li> <Li> Cover </Li> <Li> Exclusion clause </Li> <Li> Efficient breach </Li> <Li> Deviation </Li> <Li> Fundamental breach </Li> </Ul> </Td> </Tr> <Tr> <Th> Remedies </Th> </Tr> <Tr> <Td> <Ul> <Li> Specific performance </Li> <Li> Liquidated damages </Li> <Li> Penal damages </Li> <Li> Rescission </Li> </Ul> </Td> </Tr> <Tr> <Th> Quasi-contractual obligations </Th> </Tr> <Tr> <Td> <Ul> <Li> Promissory estoppel </Li> <Li> Quantum meruit </Li> </Ul> </Td> </Tr> <Tr> <Th> Related areas of law </Th> </Tr> <Tr> <Td> <Ul> <Li> Conflict of laws </Li> <Li> Commercial law </Li> </Ul> </Td> </Tr> <Tr> <Th> Other common law areas </Th> </Tr> <Tr> <Td> <Ul> <Li> Tort law </Li> <Li> Property law </Li> <Li> Wills, trusts, and estates </Li> <Li> Criminal law </Li> <Li> Evidence </Li> </Ul> </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> </Table> <Tr> <Th> Contract law </Th> </Tr> <Tr> <Td> Part of the common law series </Td> </Tr>

In which of the following cases the agreement is void ab initio