S sold a specific lot consisting of 100 square meters to B. However, the deed of sale signed by the parties showed a total area of 120 square meters due to the mistake of the secretary who drafted the contract. Later S discovered the mistake. What remedy is available to the party? A. Action for annulment of the contract B. Action for rescission of the contract C. Action for the declaration of nullity of the contract D. Action for the reformation of instrument