A brother and sister agree that if the sister lends the brother £5,000 to start a new business, he will give her a 10% stake in the company. They write down the terms on a piece of paper and both sign it. Six months later, the business is successful, but the brother refuses to transfer the shares. Which legal principle will be most relevant in determining if a binding contract exists?
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A
The doctrine of consideration.
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B
The presumption regarding the intention to create legal relations in social and domestic agreements.
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C
The 'mirror image' rule of offer and acceptance.
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D
The requirement for certainty of terms.