Okla. Stat. tit. 12A, § 12A-2A-206: Offer and acceptance in formation of lease contract

OFFER AND ACCEPTANCE IN FORMATION OF LEASE CONTRACT

(1) Unless otherwise unambiguously indicated by the language or

circumstances, an offer to make a lease contract must be construed

as inviting acceptance in any manner and by any medium reasonable in

the circumstances.

(2) If the beginning of a requested performance is a reasonable

mode of acceptance, an offeror who is not notified of acceptance

within a reasonable time may treat the offer as having lapsed before

acceptance.