Dee painted Ed's house. A week after the job was finished, Ed promised to pay Dee an extra £300 as a thank you. Under English law, can Dee enforce Ed's promise?

Correct answer: C) No, because Dee's consideration is past

Explanation

Past consideration, meaning an act completed before the promise was made, is not good consideration (Re McArdle). The exception in Lampleigh v Braithwait requires the act to be done at the promisor's request with an understanding that payment would be made, which is not shown here as the promise is a gratuitous thank you.