If the party having the right of selection between alternative acts does not give notice of the selection to the other party within the time, if any, fixed by the obligation for that purpose or, if a time is not fixed, before the time at which the obligation ought to be performed, the right of selection passes to the other party.
Mont. Code Ann. § 28-1-502
How right of selection lost
En
Official source: Montana Code Annotated (Montana Legislature). Reproduced from public-domain Montana statutes; confirm against the official source for the current text. Not legal advice.