Rules governing loss, whether fortuitous or culpable, of some or all of the prestations in alternative obligations
If the choice belongs to the debtor:
a. When only one prestation is left, either through a fortuitous event or the through debtor's acts - he loses the right of choice
b. If choice is limited through the creditor's fault or negligence - rescission (resolution) with damages
c. If all prestations are lost through the debtor's fault - damages for creditor (measure of damages will be the value of the last prestation lost)
d. If some prestations are lost through the debtor's fault - the debtor can still choose from the remaining ones
e. If all prestations are lost through a fortuitous event - obligation is extinguished
f. If all prestations but one are lost through fortuitous event and the last one is lost through the debtor's fault - damages for creditor, on the basis of the value of the last prestation
g. If all but one is lost through debtor's fault and last one through fortuitous event - disputed but the better rule is that the obligation is extinguished
If the choice belongs to the creditor:
a. If one or some prestations are lost through fortuitous event - the creditor can choose from the remainder
b. If one or some prestations are lost through the debtor's fault - the creditor may choose from the remainder or the value of any of those that have disappeared, with damages
c. If all prestations are lost through the debtor's fault - creditor may choose the value of any of them, with damages
d. If some prestations are lost through the creditor's fault - he can choose from the remainder
e. If all prestations are lost through a fortuitous event - obligation is extinguished
f. If all prestations are lost through the creditor's fault - obligation is extinguished