What is alternative obligation?
The rule on alternative obligations is governed by Article 1199 of the Civil Code, which states:
An alternative obligation is one wherein various prestations are due
but the performance of one of them is sufficiently determined by the
choice which, as a general rule, belongs to the debtor.[1]
ART. 1199. A person alternatively bound by different prestations shall completely perform one of them. The creditor cannot be compelled to receive part of one and part of the other undertaking. (1131)
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Things to remember in an alternative obligation:
a) of the two or more prestations, several are due;
b) may be complied with by performance of one of the prestations which are alternatively due;
c) the right of choice belongs to the debtor, unless it has been expressly granted to the creditor;
d) loss/impossibility of all prestations due to a fortuitous event shall extinguish the obligation;
e) loss/impossibility of one of the prestations does not extinguish the obligation; and
f) culpable loss of any of the objects alternatively due before the choice is made may give rise to liability on the part of the debtor.
[1] 8 Manresa 176.