A & B entered into a contract of sale, A, obligating himself to deliver his house and lot to B who obligated himself to pay P2M upon delivery. B has already paid, but A has not delivered the house and lot despite demand. State the remedy of B.

• A. B can sue A for rescission of the contract because of breach of contract.
• B. B can sue A for rescission because of a material breach.
• C. B can sue A for rescission because of lesion.
• D. B can sue A for declaration of nullity of the contract.