1549. Where the creditor has the choice of the prestation, he shall, if one of the prestations becomes impossible to perform, accept the remaining prestation unless the impossibility of performing it is due to the fault of the debtor, in which case the creditor has the right to exact specific performance of the remaining prestation, or reparation, by equivalence, for the injury resulting from the nonperformance of the prestation that has become impossible.
If, in the same case, the prestations become impossible to perform and the impossibility of performing them is due to the fault of the debtor, the creditor may exact reparation, by equivalence, for the injury resulting from the nonperformance of either of the prestations.
1991, c. 64, a. 1549; I.N. 2014-05-01.