Lord Bridge in Lloyds Bank V Rosset [1991] 1 AC

Lord Bridge in Lloyds Bank v Rosset [1991] 1 AC 107 suggested that there were two ways for a non-legal owner to acquire an interest in the family home under a constructive trust of common intention. The first was where the parties had reached an agreement that the property should be co-owned, on which the claimant acted to their detriment. Which of the following statements best describes the nature of the agreement the courts are looking for? (Read each answer and think carefully before answering) .

A) An imprecise understanding that the property should be shared, based on evidence of any express discussions of the parties.
B) The agreement is effectively a contract between the parties, with the detrimental act of the claimant providing consideration to allow equity to enforce it.
C) The court imputes an agreement from the words used and conduct of the parties during their time in the family home.
D) A representation or assurance from the legal owner, on which the claimant acted to his or her detriment.