20-3-1. Alternative obligation defined–Right of selection.
An obligation which requires the performance of one of two acts at the option of a party is an alternative obligation. The party required to perform has the right of selection unless the terms of the obligation otherwise provide.
Source: CivC 1877, §813; CL 1887, §3436; RCivC 1903, §1129; RC 1919, §736; SDC 1939, §47.0113.